Osceola County

Osceola County is located in the northwestern portion of Michigan’s Lower Peninsula, part of the broader Northern Michigan region. Created in 1840 and organized in 1869, it developed during the state’s 19th-century timber era and later shifted toward a mixed economy. The county is small in population, with about 23,000 residents, and is characterized as largely rural, with small towns and extensive forested land. Its landscape includes rivers, lakes, and rolling terrain associated with the Great Lakes watershed, supporting outdoor recreation and natural-resource-based land use. Key economic activity centers on manufacturing, agriculture, forestry, and service employment tied to regional travel and seasonal residents. Cultural life reflects Northern Michigan’s small-community patterns, including local festivals, outdoor traditions, and school-based athletics. The county seat and largest community is Reed City, which serves as the primary administrative and commercial hub.

Osceola County is a largely rural county in west-central Michigan’s Lower Peninsula, within the broader “West Michigan” region. The county seat is Reed City, and county government information is maintained through the Osceola County official website.

Population Size

According to the U.S. Census Bureau QuickFacts for Osceola County, Michigan, the county’s population was 23,460 (2020).

Age & Gender

The most consistently cited county-level age and sex breakdown is published in the decennial census profile. The U.S. Census Bureau’s data.census.gov portal provides detailed tables for Osceola County, Michigan from the 2020 Census Demographic and Housing Characteristics File (DHC), including:

• Age distribution (counts by age groups and median age)
• Sex composition (male and female population counts and percentages)
• Sex ratio (males per 100 females), derivable from the sex counts

A single consolidated age-and-gender summary is not displayed on QuickFacts for every county page; when not shown there, the county-level DHC tables on data.census.gov are the authoritative source.

Racial & Ethnic Composition

According to the U.S. Census Bureau QuickFacts for Osceola County, Michigan, the county’s racial and Hispanic/Latino composition is provided using standard Census categories (race alone, and Hispanic or Latino ethnicity). For the complete set of race and ethnicity tables (including “race alone or in combination” and more detailed categories), the authoritative county-level source is the U.S. Census Bureau’s data.census.gov 2020 Census DHC tables for Osceola County.

Household & Housing Data

County-level household and housing indicators are published by the U.S. Census Bureau. The QuickFacts page for Osceola County reports commonly used measures such as:

• Number of households
• Owner-occupied housing rate
• Median value of owner-occupied housing units
• Median gross rent
• Households per housing unit and related housing stock measures

For table-level detail (household types, family vs. nonfamily households, occupancy/vacancy, and housing unit characteristics), the official source is the county’s 2020 Census DHC tables on data.census.gov.

Osceola County, Michigan is largely rural with small population centers, and this lower population density can reduce private-sector incentives for extensive last‑mile broadband buildout, shaping how residents access email and other online services.

Direct county-level email usage statistics are not generally published; email adoption is therefore inferred from digital access and demographic proxies drawn from the U.S. Census Bureau (data.census.gov).

Digital access indicators (proxies for email use)

American Community Survey tables commonly used for this purpose include household computer ownership and broadband internet subscriptions. Lower broadband subscription rates and lower in-home computer availability typically correlate with reduced routine email access and greater reliance on smartphones or public access points (e.g., libraries).

Age distribution and likely influence on email adoption

ACS age structure data provide context because older populations tend to maintain email for formal communication (healthcare, government, banking), while younger residents may substitute messaging platforms. County age composition can therefore influence both email prevalence and device choice.

Gender distribution

ACS sex distribution is generally less predictive of email use than age and access; it mainly serves as background context.

Connectivity and infrastructure limitations

Rural topography, dispersed housing, and limited provider competition are common constraints. County-specific broadband availability context is documented by the FCC National Broadband Map and the NTIA BroadbandUSA program resources.

Osceola County is located in north-central Michigan’s Lower Peninsula, with the county seat in Reed City and extensive rural land cover (forests, lakes, and low-density settlement). Its dispersed population pattern and wooded terrain are relevant for mobile connectivity because cell coverage and capacity tend to be strongest along major roads and towns and more variable in sparsely populated areas where tower spacing is wider. County-level population size and density characteristics are documented by Census.gov QuickFacts for Osceola County.

Key distinction: network availability vs. adoption

Network availability refers to whether a mobile provider reports service in a location (coverage). This is typically mapped by providers or regulators and does not directly measure performance indoors or at specific times.

Adoption refers to whether residents actually subscribe to mobile service and use smartphones/mobile broadband in daily life. Adoption is measured through household surveys (often at state or national level rather than county level).

Mobile penetration and access indicators (adoption)

County-specific “mobile subscription” or “smartphone ownership” metrics are not consistently published at the county level by federal statistical programs. The most widely cited adoption datasets for the U.S. are generally reported at national, state, or metro-area levels rather than for rural counties.

Available local indicators are therefore primarily proxies:

• Population and housing distribution (rurality and settlement dispersion) from Census.gov QuickFacts, which contextualize likely reliance on mobile networks where fixed broadband buildout is uneven.
• Broadband subscription context (fixed broadband adoption) is more commonly available than mobile-only adoption through the American Community Survey, but ACS tables do not provide a clean county-level measure of “mobile broadband subscription” comparable to provider subscription counts.

Limitations: public, county-level statistics that directly quantify mobile penetration (e.g., percent of adults with a smartphone; percent of households with a cellular data plan as the primary internet connection; mobile subscriber counts by county) are not routinely released in a standardized way. As a result, definitive adoption rates should be drawn from state-level survey results and national benchmarks rather than inferred for Osceola County.

Mobile internet usage patterns and network availability (4G/5G)

Reported coverage (availability)

The most authoritative public source for reported mobile broadband coverage is the FCC’s mobile availability data:

• The FCC publishes carrier-reported coverage through its Broadband Data Collection and National Broadband Map. The map can be used to view 4G LTE and 5G availability by location and technology, and to compare providers within Osceola County. See the FCC National Broadband Map.

Important notes on availability data:

• FCC mobile coverage layers reflect where providers report service meeting specific minimum technical thresholds; they are not a guarantee of consistent speeds in all conditions (terrain, building penetration, network congestion).
• Rural counties commonly show coverage gaps or weaker signal quality away from population centers, and “in-vehicle/outdoor” coverage may differ from indoor experience.

4G vs. 5G in rural northern Lower Michigan context

• 4G LTE is typically the baseline mobile broadband layer across rural Michigan and is generally more spatially extensive than 5G, especially away from towns and highways.
• 5G availability in rural counties is often concentrated near higher-traffic corridors and population centers. The FCC map provides the most precise, address-level way to distinguish where 5G is reported versus LTE-only areas in Osceola County.

Performance measurement (usage experience)

Coverage availability does not equal experienced performance. Publicly accessible performance metrics are usually available at broader geographic levels (state, regional, or provider-reported), and third-party testing reports rarely provide statistically robust county-only samples for sparsely populated areas. For statewide broadband planning context and measurement approaches, the Michigan High-Speed Internet Office (MIHI) provides broadband mapping and program information relevant to both fixed and wireless connectivity.

Common device types (smartphones vs. other devices)

County-level device-type distributions (smartphones vs. feature phones vs. mobile hotspots) are generally not published as official statistics. The most defensible characterization is based on standard U.S. usage patterns documented in national surveys and the structure of modern mobile networks:

• Smartphones are the dominant end-user device type for mobile internet access nationally, and they are the primary drivers of consumer mobile data traffic (web, video, messaging, navigation).
• Other connected devices in rural areas commonly include tablets, connected laptops (via tethering), dedicated mobile hotspots, and fixed-wireless/“home internet” offerings delivered over cellular networks in some locations. However, the presence and scale of these categories in Osceola County specifically is not available in standardized county-level public data.

Limitations: Without carrier subscriber device breakdowns or a county-specific household technology survey, precise device-type shares cannot be stated for Osceola County.

Demographic and geographic factors influencing mobile usage and connectivity

Rural settlement patterns and tower economics (availability + capacity)

• Lower population density reduces the economic incentive for dense tower placement, which can produce larger coverage cells, more variable indoor reception, and fewer capacity upgrades relative to urban counties.
• Connectivity tends to be strongest in and around Reed City and other settled areas, and along major roads, with more variability in heavily forested or sparsely populated zones.

Terrain, vegetation, and seasonal effects (availability and user experience)

• Forest cover and uneven terrain can attenuate signal strength, especially for higher-frequency bands used in some 5G deployments.
• Seasonal leaf-on/leaf-off conditions can change propagation characteristics in wooded areas; public maps generally do not reflect these micro-variations.

Income, age, and housing patterns (adoption and reliance on mobile)

County demographics influence whether households rely on mobile service as their primary connection or maintain both fixed and mobile service:

• Areas with lower incomes or higher housing cost burdens sometimes show higher “mobile-only” reliance in national research, but Osceola County–specific mobile-only household rates are not available as standardized county statistics.
• Older age distributions can correlate with different device preferences and usage intensity, though local measurement requires county-level survey data not typically published.

For local demographic baselines (age distribution, household characteristics, income measures), Census.gov QuickFacts provides consistent county comparisons.

Practical, data-backed sources for Osceola County connectivity

• Reported 4G/5G availability by provider and location: FCC National Broadband Map
• State broadband planning and mapping context (including wireless considerations): Michigan High-Speed Internet Office (MIHI)
• County demographic and housing context that affects demand and buildout: Census.gov QuickFacts (Osceola County)
• Local government context (land use, communities, services): Osceola County, Michigan official website

Summary of what can and cannot be stated at county level

• Can be stated with public data: where providers report 4G LTE and 5G availability within Osceola County (FCC map); county rurality and demographic context (Census); statewide broadband planning framework (MIHI).
• Cannot be stated definitively with standardized public county-level data: precise mobile penetration/adoption rates (smartphone ownership, mobile subscriber counts), county-level device-type shares, and statistically robust countywide mobile performance metrics.

Osceola County is a rural county in north‑central Michigan’s Lower Peninsula, with communities such as Reed City (near the county line) influencing its local labor market and services, and an economy shaped by small employers, outdoor recreation, and regional travel corridors. These characteristics generally align with higher reliance on mobile connectivity, community Facebook groups, and locally oriented information sharing compared with large metropolitan counties in Michigan.

User statistics (penetration / active use)

• County-specific social media penetration: No authoritative, regularly updated public dataset reports social media penetration specifically for Osceola County; most high-quality measurements are national or state-level.
• Benchmarks applicable to Osceola County (U.S. adults):
  • Overall social media use: About 7 in 10 U.S. adults (≈70%) use at least one social media site, per Pew Research Center’s Social Media Use in 2023.
  • Internet access context (important for rural counties): Rural adults are less likely than urban/suburban adults to have home broadband, affecting how social platforms are accessed (often via smartphones). See Pew Research Center’s Internet/Broadband Fact Sheet.

Age group trends (who uses social media most)

National patterns (commonly used as a proxy for rural counties lacking local surveys) show usage is highest among younger adults and declines with age:

• 18–29: ~84% use social media
• 30–49: ~81%
• 50–64: ~73%
• 65+: ~45%
  Source: Pew Research Center (2024).
  Implication for Osceola County: With rural demographics often skewing older than statewide averages, overall penetration can be moderated by the larger share of 50+ residents, while Facebook use remains comparatively strong among older cohorts.

Gender breakdown

Pew’s national reporting shows broadly similar overall social media adoption by gender among U.S. adults, with platform-specific differences (for example, women tend to report higher use of visually oriented and community-oriented platforms). Source: Pew Research Center (2024).
County-level gender splits for platform use are not published in standard public sources for Osceola County.

Most-used platforms (percent using each platform)

Reliable platform percentages are typically available at the U.S.-adult level rather than county level. Pew reports the following shares of U.S. adults who use each platform:

• YouTube: ~83%
• Facebook: ~68%
• Instagram: ~47%
• Pinterest: ~35%
• TikTok: ~33%
• LinkedIn: ~30%
• WhatsApp: ~29%
• Snapchat: ~27%
• X (formerly Twitter): ~22%
  Source: Pew Research Center (2024).

Implication for Osceola County (rural context):

• Facebook and YouTube are typically dominant in rural information ecosystems (events, classifieds, local news circulation, how-to and entertainment video).
• TikTok, Instagram, Snapchat are more concentrated among younger adults, so their local reach depends heavily on the county’s youth/young adult share.

Behavioral trends (engagement patterns / platform preferences)

• Local-information orientation: Rural counties commonly show heavier use of Facebook groups/pages for community announcements, school and sports updates, local business discovery, and informal commerce (buy/sell/trade). This aligns with Facebook’s comparatively high adoption among older adults and its group functionality (platform feature, consistent with Pew’s high Facebook reach).
• Video-first consumption: YouTube’s very high penetration nationally suggests broad reach across age groups, supporting uses such as instructional content, entertainment, and local organization communications via video. Source: Pew Research Center (2024).
• Age-driven platform segmentation: Younger adults concentrate more on Instagram, TikTok, and Snapchat, while older adults skew toward Facebook and YouTube. This follows Pew’s age gradients by platform and overall use. Source: Pew Research Center (2024).
• Mobile-centric access patterns: Lower rural broadband availability increases reliance on smartphone-based social media use, affecting content formats (short video, compressed media) and engagement windows (more frequent, shorter sessions). Broadband adoption differences by community type are documented in Pew Research Center’s broadband fact sheet.

Osceola County family-related public records primarily include vital records (birth and death) and court records affecting family status. In Michigan, birth and death records are created and maintained at the county level by the county clerk and centrally by the state. In Osceola County, local requests are handled through the Osceola County Clerk; statewide ordering and identity requirements are administered by the Michigan Department of Health and Human Services (MDHHS) Vital Records.

Adoption records are generally handled through the court system and are commonly restricted due to confidentiality rules. Family-related court filings (for example, divorce or guardianship) are maintained by the trial court serving the county; access typically occurs through the court clerk and public case lookup tools where available. Michigan provides a statewide court-case access portal through MiCOURT Case Search.

Public databases for vital records are limited; certified copies are commonly issued through clerk/MDHHS order processes rather than open online databases. Residents access records in person at the county clerk or court clerk offices, or online through MDHHS and Michigan court portals.

Privacy restrictions commonly apply to recent birth records, adoption files, and some family-court matters; certified copies generally require eligibility verification and valid identification.

Types of records available

• Marriage records (licenses/registrations and certificates)
  • Marriages in Osceola County are documented through a marriage license issued by the county clerk and a marriage record/certificate created after the officiant returns the completed license for recording.
• Divorce records
  • Divorces are documented in the Osceola County Circuit Court case file and finalized by a Judgment of Divorce (often referred to informally as a divorce decree).
• Annulment records
  • Annulments are handled as civil actions in the Circuit Court and typically result in a judgment/order of annulment (or similar court order) recorded in the case file.

Where records are filed and how they can be accessed

• Marriage (Osceola County Clerk / Vital Records)
  • The Osceola County Clerk is the local custodian for marriage records created in the county, including the recorded license/certificate.
  • Certified copies are generally obtained through the county clerk’s office; older records may also be available through statewide repositories and authorized services.
• Divorce and annulment (Osceola County Circuit Court)
  • Osceola County Circuit Court maintains the official court case records for divorces and annulments filed in the county.
  • Access commonly occurs through the clerk of the circuit court for copies of judgments and other filings, subject to court rules and any confidentiality orders.
• State-level vital records (Michigan Department of Health and Human Services)
  • Michigan maintains a statewide vital records system. State-level copies of marriage and divorce records are commonly available through the Michigan Department of Health and Human Services (MDHHS) for eligible requesters and for eligible record types.
  • References:
    • MDHHS Vital Records: https://www.michigan.gov/mdhhs/doing-business/vitalrecords

Typical information included in these records

• Marriage license/record/certificate
  • Names of the parties
  • Date and place of marriage (and typically the county of recording)
  • Officiant name and authority, and date the license was returned/recorded
  • Applicant details commonly captured on the license application (varies by form and time period), such as ages/dates of birth, residences, birthplaces, and parents’ names
• Divorce judgment (divorce decree) and case record
  • Names of the parties and case caption/docket information
  • Filing date and date of judgment
  • Findings and orders on dissolution of marriage
  • Provisions addressing children (custody, parenting time), support, property and debt division, and other relief when applicable
• Annulment judgment/order and case record
  • Names of the parties and case caption/docket information
  • Date and nature of the court’s determination that the marriage is void or voidable under Michigan law
  • Orders addressing related issues (property, support, children) when applicable

Privacy or legal restrictions

• Marriage records
  • Michigan marriage records are generally treated as public records for purposes of basic fact verification, but issuance of certified copies is controlled through the custodian (county clerk or MDHHS) and identity/eligibility requirements may apply depending on the type of copy requested and applicable state policy.
• Divorce and annulment records
  • Court records are generally public, but specific documents or information may be restricted by statute, court rule, or court order. Common restrictions include:
    • Sealed or confidential filings by court order
    • Protected personal identifiers (such as Social Security numbers) and certain financial account information
    • Confidential information involving minors, domestic violence protections, and other sensitive matters as governed by Michigan court rules and confidentiality provisions
• Certified copies and redaction
  • Certified copies are issued by the record custodian and may include only the portions permitted for release; records may be redacted to comply with Michigan legal requirements and court-ordered confidentiality.

Osceola County is a rural county in north-central Michigan’s Lower Peninsula, with its county seat in Reed City and a population of roughly 23,000 (recent ACS-era estimates). The county’s communities are oriented around small towns (notably Reed City and Evart), lakes/forests, and regional commuting to larger job centers in nearby counties. Data below primarily reflect U.S. Census Bureau American Community Survey (ACS) profiles and commonly cited statewide/local administrative reporting; where an Osceola-specific metric is not consistently published in a single public table, a clearly labeled proxy is used.

Education Indicators

Public schools and districts (names)

Osceola County’s K–12 public education is mainly provided by several local districts. Commonly listed districts serving county residents include:

• Reed City Area Public Schools
• Evart Public Schools
• Marion Public Schools
• Pine River Area Schools (district extends into neighboring counties)
• Chippewa Hills School District (district extends into neighboring counties)

A consolidated, authoritative roster of every building and program by name is typically maintained through district sites and state/district directories rather than a single county-level “public schools count” table. For district-by-district enrollment, staffing, and school listings, the most consistent public directory is the Michigan Department of Education and associated state reporting portals (see the Michigan Department of Education).

Student–teacher ratios and graduation rates

• Student–teacher ratios: School-level ratios vary by district and building and are not reliably summarized at the county level in ACS. The most comparable, regularly updated ratios are published in district/school accountability and staffing reports (state administrative reporting). As a proxy for context, rural northern Lower Peninsula districts commonly fall in the mid-to-high teens students per teacher, but Osceola-specific building ratios should be taken from district/state reports.
• Graduation rates: Michigan reports high school graduation rates by district and high school (4-year and extended-year). A single countywide graduation rate is not consistently reported as a standard official statistic. District-level graduation rates are available through Michigan’s accountability reporting systems (state administrative reporting).

Adult educational attainment (countywide)

Using recent ACS county profiles (most recent 5-year series commonly used for county-level reliability), Osceola County’s adult attainment is characterized by:

• A majority of adults having a high school diploma or equivalent (high school completion is the dominant attainment level).
• A comparatively smaller share with a bachelor’s degree or higher than statewide averages.

For the county’s current percentage values (high school graduate or higher; bachelor’s degree or higher), the most stable source is the county profile tables in the U.S. Census Bureau’s data.census.gov (ACS 5-year, Educational Attainment).

Notable programs (STEM, CTE, AP)

Across rural Michigan districts, notable offerings commonly include:

• Career and Technical Education (CTE)/vocational training partnerships (often shared regionally through a career center or intermediate school district structure).
• Dual enrollment options through community colleges or regional partners (course availability varies by district).
• Advanced Placement (AP) offerings are typically more limited than in large suburban districts; availability varies by high school and staffing.

Program inventories are district-specific; the most definitive descriptions are published by each district and in state program reporting rather than county summaries.

School safety measures and counseling resources

Michigan districts generally implement:

• Secure entry procedures (controlled building access during school hours)
• Emergency operations planning and safety drills aligned with state requirements
• School counseling services (school counselors and/or social workers), with mental-health partnerships varying by district size and resources

Counseling staffing levels and specific safety measures are published at the district/building level (district handbooks, board policies, and safety plans), not as a standardized countywide statistic.

Employment and Economic Conditions

Unemployment rate (most recent year available)

County unemployment rates are commonly published as annual averages by the Bureau of Labor Statistics (LAUS) and/or state labor market information. Osceola County’s unemployment typically runs higher than Michigan’s statewide average and is sensitive to seasonal patterns in rural economies. The most recent annual average rate can be verified through the BLS Local Area Unemployment Statistics (LAUS) series (county tables).

Major industries and employment sectors

Based on typical rural northern Michigan employment mixes and ACS industry distributions for similar counties, major sectors in Osceola County generally include:

• Manufacturing
• Health care and social assistance
• Retail trade
• Educational services (public schools as significant local employers)
• Construction
• Accommodation and food services (seasonal effects)
• Public administration

County industry shares (percent employed by sector) are available from ACS “Industry by Occupation” and related tables on data.census.gov.

Common occupations and workforce breakdown

Occupational composition in Osceola County typically reflects:

• Production and transportation/material moving roles (linked to manufacturing and logistics)
• Office/administrative support
• Sales and related
• Service occupations (food service, personal care, protective service)
• Construction and extraction
• Management and professional roles at lower shares than statewide averages (common in rural counties)

The most comparable county occupation percentages are provided by ACS occupation tables at data.census.gov.

Commuting patterns and mean commute time

Commuting in Osceola County is shaped by small-town job centers and out-commuting to nearby counties for higher-wage or specialized work. Typical characteristics include:

• High reliance on driving alone as the primary commute mode
• Limited public transit commute share (common in rural counties)
• Mean commute times generally in the mid-20-minute range in many rural Michigan counties; the county-specific mean is reported in ACS commuting tables.

Authoritative mean commute time and commuting mode shares are available in ACS “Commuting (Journey to Work)” tables on data.census.gov.

Local employment vs. out-of-county work

Osceola County has a notable share of residents who work outside the county, reflecting regional labor markets (e.g., commuting toward larger employment centers in adjacent counties). The clearest quantification of in-county versus out-of-county work is typically derived from:

• ACS commuting flow tables (limited for small geographies), and
• Federal commuting datasets such as LEHD/OnTheMap, where available.

A commonly used reference for residence-to-work flows is the Census LEHD tool OnTheMap (coverage varies by state and year).

Housing and Real Estate

Homeownership vs. renting

Osceola County is predominantly owner-occupied, typical of rural Michigan counties:

• Homeownership rate: generally around three-quarters of occupied housing units
• Rental share: generally around one-quarter

The most current county percentages are published in ACS tenure tables via data.census.gov.

Median property values and recent trends

• Median owner-occupied home value: Osceola County’s median value is typically below Michigan’s statewide median, reflecting rural market pricing.
• Recent trend: Like much of Michigan, values rose sharply during 2020–2022 and then shifted toward slower growth/greater variability as interest rates increased; county-specific appreciation rates are best tracked through multi-year ACS median value trends and local assessor/sales data rather than a single county trend index.

ACS median home value (owner-occupied) is available through data.census.gov. For market-based price trends, the most consistent public proxies are regional MLS summaries and state/local assessor publications; these are not standardized in a single statewide table.

Typical rent prices

• Median gross rent: generally lower than statewide medians, consistent with rural housing markets and a smaller apartment inventory.

County median gross rent is reported in ACS rent tables on data.census.gov.

Types of housing stock

Osceola County housing is characterized by:

• Single-family detached homes as the dominant structure type
• Manufactured housing (mobile homes) at a higher share than in urban counties (common rural pattern)
• Seasonal/recreational housing around lakes and forested areas
• Limited multifamily/apartment stock, concentrated near Reed City and Evart

Structure type distributions (single-family, multifamily, mobile home, etc.) are available in ACS housing tables on data.census.gov.

Neighborhood and siting characteristics (proximity to schools/amenities)

• Reed City and Evart function as the primary service centers, with relatively shorter trips to schools, grocery, clinics, and civic services compared with outlying townships.
• Outside town centers, housing commonly sits on larger rural lots with longer driving distances to schools and amenities, reflecting the county’s low-density settlement pattern.
• Lake-adjacent areas often include seasonal homes and cabins, with amenities oriented to recreation rather than walkable daily services.

These characteristics reflect land-use patterns rather than a single standardized statistical series.

Property tax overview (rate and typical homeowner cost)

Michigan property taxes are assessed primarily at the local level, with rates varying by township/city and school district millages. For Osceola County:

• Effective property tax rates tend to be moderate by Michigan standards, but vary meaningfully by location and whether the property is a primary residence (PRE) or not.
• Typical homeowner tax bills are a function of taxable value, local millages, and exemptions; countywide “average bill” is not a single fixed amount because millages differ across jurisdictions.

For authoritative millage rates and tax estimation rules, the primary references are the Michigan Department of Treasury (property tax administration) and local unit assessors/treasurers for jurisdiction-specific millages and taxable value calculations.