Juab County is a rural county in central Utah, extending from the eastern shore of Utah Lake southwest across broad valleys and desert basins toward the Tintic and Drum Mountains. Created in 1852 during Utah’s territorial period, it developed as a transportation and agricultural corridor linking the Wasatch Front with western and southern Utah; mining in nearby districts also influenced regional growth. The county is small in population, with roughly a low–five-digit number of residents, and most settlement is concentrated along the Interstate 15 corridor. Agriculture and livestock production remain important, alongside commuting and local services, with some resource and industrial activity in outlying areas. The landscape ranges from irrigated farmland and wetlands near the lake to sagebrush steppe, foothills, and mountain terrain, supporting outdoor-oriented local culture and dispersed communities. The county seat is Nephi.
Juab County Local Demographic Profile
Juab County is located in central Utah along the Wasatch Front’s southern periphery, with county services centered in Nephi and communities extending west into desert basins. For local government and planning resources, visit the Juab County official website.
Population Size
County-level demographic totals vary by Census product and release; the most current official figures are published by the U.S. Census Bureau through its annual and decennial programs. According to the U.S. Census Bureau QuickFacts for Juab County, Utah, the page reports the county’s population level (including the 2020 decennial count and the latest available annual estimate shown on that profile).
Age & Gender
Age structure and sex composition for Juab County are reported in standard Census tabulations. The U.S. Census Bureau QuickFacts profile provides:
- Age distribution highlights (including share under 18 and share 65+)
- Percent female and percent male (gender ratio can be derived from these percentages)
For detailed age brackets (e.g., 5-year cohorts) and sex-by-age tables, county-level results are available through the Census Bureau’s data.census.gov portal (Decennial Census and American Community Survey tables, depending on the topic).
Racial & Ethnic Composition
Race and Hispanic or Latino origin statistics for Juab County are published by the U.S. Census Bureau. The QuickFacts county profile summarizes:
- Race categories (e.g., White, Black or African American, American Indian and Alaska Native, Asian, Native Hawaiian and Other Pacific Islander, Some Other Race, and Two or More Races)
- Hispanic or Latino (of any race)
For fully detailed race/origin tables and methodology, the Census Bureau’s data.census.gov provides county-level decennial and survey-based tables.
Household & Housing Data
Household characteristics and housing indicators for Juab County are reported in Census Bureau profiles and tables. The QuickFacts county profile includes commonly used measures such as:
- Number of households and average household size
- Owner-occupied housing rate (homeownership)
- Housing unit counts and selected housing characteristics (as provided on the profile)
For deeper household detail (e.g., household type, presence of children, occupancy/vacancy, and housing structure type), county-level tables are accessible via data.census.gov (primarily from the American Community Survey, with some housing counts from decennial programs).
Email Usage
Juab County is largely rural, with population concentrated around Nephi and wide distances between communities; this geography can raise the cost of last‑mile broadband and make residents more dependent on mobile coverage for digital communication.
Direct county-level email usage statistics are not generally published, so email adoption is summarized using proxy indicators from the U.S. Census Bureau (data.census.gov), especially American Community Survey measures of households with a broadband subscription and households with a computer. Higher broadband and computer access typically supports routine email use for work, school, and government services.
Age structure also matters: ACS age distribution (shares of children, working-age adults, and older adults) helps indicate likely variation in email reliance, since older cohorts tend to have lower adoption of some digital services than prime working-age groups. Gender distribution is available in ACS but is usually a weaker predictor of email access than age and connectivity measures.
Connectivity limitations are reflected in local service availability and terrain; state and federal broadband mapping resources such as the FCC National Broadband Map document coverage gaps that can constrain consistent home email access, particularly outside town centers.
Mobile Phone Usage
Juab County is in central Utah, south of Utah County and west of the Wasatch Front. It includes the county seat of Nephi and substantial rural areas, with mountainous terrain (parts of the Wasatch Range), basin-and-range topography, and wide stretches of open land between communities. These characteristics—low population density outside towns, long distances between settlements, and terrain that can block or attenuate radio signals—are relevant to mobile network coverage quality, especially away from major highways and population centers.
Key distinction: network availability vs. adoption
Network availability describes where mobile providers report service (coverage footprints, advertised speeds, and technology such as LTE/5G).
Adoption describes whether residents and households actually subscribe to mobile service, use mobile broadband, or rely on smartphones for internet access. County-level adoption metrics for mobile specifically are often limited, so measures frequently rely on broader “internet subscription” and device/connection type indicators.
Mobile penetration and access indicators (adoption)
County-level internet subscription indicators (proxy for mobile adoption)
- The most consistent county-level source for household connectivity and device/connection types is the U.S. Census Bureau’s American Community Survey (ACS). ACS tables for Juab County can be used to track:
- Households with an internet subscription (any type)
- Broadband types reported by households (e.g., cellular data plan, cable, fiber, DSL, satellite)
- Computer and smartphone access indicators in some ACS tables and related Census products
County-level ACS results are estimates with margins of error, and they do not measure mobile network quality or coverage.
Relevant sources:
- U.S. Census Bureau data portal (data.census.gov) (search “Juab County, Utah” and ACS internet subscription tables)
- American Community Survey (ACS) methodology and releases
Limitations at the county level
- Publicly available, standardized measures of mobile subscription penetration (e.g., “mobile subscriptions per 100 people”) are typically reported at national/state levels or by carrier/industry sources, not consistently at the county level.
- County-level ACS can identify households reporting a cellular data plan as their internet subscription, but this remains a household-reported survey measure and does not describe signal strength, congestion, or in-vehicle coverage.
Mobile internet usage patterns and network technology availability (LTE/5G)
LTE (4G) and 5G availability (reported coverage)
- The principal public reference for reported mobile broadband coverage in the U.S. is the FCC’s Broadband Data Collection (BDC) maps, which provide provider-submitted coverage polygons by technology (including LTE and multiple 5G variants) and allow viewing coverage at local scales. This describes availability as reported and challenged through FCC processes; it does not directly measure adoption or user experience.
Relevant source:
- FCC National Broadband Map (coverage by provider and technology)
Typical county connectivity pattern (availability context, not adoption)
- In rural-intermixed counties like Juab, LTE coverage is generally strongest in and around towns (e.g., Nephi) and along major transportation corridors, with weaker or absent service in mountainous areas and remote valleys.
- 5G availability at the county scale commonly appears first in population centers and along high-traffic corridors, with coverage thinning in sparsely populated zones. The FCC map is the definitive public reference for where providers report 5G service in Juab County.
Performance and user experience data limitations
- FCC availability data does not guarantee consistent indoor coverage, minimum speeds under load, or reliability during peak usage. Third-party speed-test aggregations may provide additional context but are not official and can be biased toward where tests occur (typically more populated areas).
Common device types (smartphones vs. other devices)
What can be measured publicly
- The ACS provides indicators related to household computing devices and internet subscription types. While it does not enumerate “smartphone ownership” in the same way as some private surveys, it can capture whether households rely on a cellular data plan for internet access and whether they have other computing devices.
- County-specific, public, device-type breakdowns (smartphone vs. feature phone) are not typically published in a standardized way. As a result, county-level device mix is best inferred from ACS “internet subscription type” and device availability measures, but those remain indirect.
Relevant sources:
Demographic and geographic factors influencing mobile usage and connectivity
Geography, settlement pattern, and transportation corridors (availability driver)
- Terrain: Mountain ridges and canyons can create shadowing that reduces coverage quality and increases the need for additional tower sites to reach small pockets of population.
- Low-density areas: Sparse settlement increases per-user infrastructure cost, often resulting in fewer sites and larger cell sizes, which can reduce capacity and indoor signal strength.
- Corridors: Connectivity is frequently better near Interstate 15 and other primary routes due to higher traffic and commercial incentives for coverage continuity.
County reference:
- Juab County official website (county geography and communities)
Demographics and household connectivity choices (adoption driver)
- Income and housing characteristics influence whether households maintain multiple subscriptions (home fixed broadband plus mobile) versus relying on mobile-only connectivity.
- Distance from fixed broadband infrastructure can increase reliance on cellular data plans or satellite in more remote parts of the county. This relationship can be examined using ACS household subscription types, which separate cellular plans from other broadband forms.
State broadband context:
- Utah Broadband Center (state broadband office) (statewide planning, mapping, and program context relevant to rural counties)
Summary of what is known vs. not consistently available at the county level
- Known/obtainable (public, county-level):
- Household internet subscription presence and types (including cellular data plans) via ACS on data.census.gov
- Provider-reported LTE/5G availability via the FCC National Broadband Map
- Not consistently available (public, county-level):
- Direct mobile subscription penetration rates (subscriptions per capita)
- Definitive smartphone vs. feature-phone share
- Standardized countywide mobile usage intensity metrics (e.g., data consumed per user), which are typically proprietary carrier data
Social Media Trends
Juab County is a small, predominantly rural county in central Utah, anchored by Nephi (the county seat) and communities along the I‑15 corridor such as Mona. Its economy is shaped by local services, commuting ties to the Wasatch Front, agriculture, and regional industry, while its settlement pattern and commuting geography tend to align residents’ media habits with statewide and national norms rather than a dense, urban “always-on” social scene.
User statistics (penetration / active use)
- No county-specific, publicly reported social media penetration rate is consistently available for Juab County from major national survey series. Most reliable sources publish social media use at the U.S. national level (and sometimes state/metro level), not by rural county.
- National benchmarks commonly used to contextualize counties:
- Adults using social media: about 7 in 10 U.S. adults report using at least one social media site. Source: Pew Research Center social media fact sheet.
- Social media use is strongly associated with smartphone access and broadband adoption, which can vary in rural areas; rural adults have historically reported slightly lower adoption than urban/suburban peers in Pew’s internet access research. Source: Pew Research Center internet & broadband research.
Age group trends
National survey patterns (commonly applied as a baseline for rural counties such as Juab) show a strong age gradient:
- Highest usage: 18–29 and 30–49 adults are the most likely to use social media overall.
- Moderate usage: 50–64 adults have lower overall usage than younger adults but remain active on major platforms.
- Lowest usage: 65+ adults use social platforms at the lowest rates, though adoption has increased over time.
- Source: Pew Research Center social media fact sheet.
Gender breakdown
- Across the U.S., women are modestly more likely than men to report using some major platforms (patterns differ by platform). Broadly, overall social media use differences by gender are typically small compared with age effects.
- Source: Pew Research Center social media fact sheet.
Most-used platforms (percentages where available)
Because consistent platform penetration is not reported at the county level, the most defensible way to present platform shares for Juab County is to cite U.S. adult usage rates as reference points:
- YouTube: ~83% of U.S. adults
- Facebook: ~68%
- Instagram: ~47%
- Pinterest: ~35%
- TikTok: ~33%
- LinkedIn: ~30%
- X (formerly Twitter): ~22%
- Snapchat: ~27%
- WhatsApp: ~29%
- Source: Pew Research Center social media fact sheet.
Behavioral trends (engagement patterns and preferences)
- Video-centric consumption is dominant: The very high reach of YouTube nationally indicates that video (how-to content, entertainment, news clips) is a primary mode of social media use, including in non-metro areas where on-demand viewing fits commuting and household schedules. Source: Pew Research Center social media fact sheet.
- Facebook remains a key “community infrastructure” platform: Nationally high Facebook use, combined with rural-community communication norms, aligns with heavy use of local groups/pages for announcements, events, buy/sell activity, and school/community updates.
- Age-based platform clustering:
- Younger adults concentrate more on Instagram, TikTok, and Snapchat, with higher posting/sharing rates and short-form video use.
- Older adults skew more toward Facebook and YouTube, with more passive consumption and community/news follow behaviors.
- Source: Pew Research Center social media fact sheet.
- Messaging and social browsing as daily habits: National tracking shows many users access social platforms daily, and a sizable share report “almost constant” use among younger cohorts, indicating frequent short sessions rather than single long visits. Source: Pew Research Center social media fact sheet.
- Local commerce and practical information-seeking: In smaller counties, social media use often emphasizes utilitarian outcomes (local recommendations, classifieds, local services) over influencer-driven discovery; Facebook Marketplace and community groups commonly serve this function (county-specific measurement is not routinely published in national datasets).
Family & Associates Records
Juab County family-related public records are primarily handled at the state level, with some access points and related filings maintained locally. Utah vital records (birth and death certificates) are administered by the Utah Department of Health and Human Services, Office of Vital Records and Statistics; certified copies are generally issued to eligible requestors, and short-form informational copies may be available in limited circumstances. Birth and death events are registered statewide rather than by the county. Adoption records in Utah are generally sealed and accessed through state-controlled procedures rather than open county files.
County-level records that can document family relationships include marriage licenses and divorce case files. Marriage licenses are typically issued and recorded through the county clerk/auditor, and divorce records are filed with the courts. Juab County also maintains recorded property documents that may reference spouses or heirs through the county recorder.
Online access is available for many Utah court case summaries through the Utah Courts’ public portal (Utah Courts XChange / MyCase). Recorded land documents may be accessible through the Juab County Recorder’s office and its online services listed at Juab County Recorder. County offices and contact points are listed at Juab County official website.
Privacy restrictions commonly apply to vital records, adoption files, and certain court records (including sealed or protected cases). Identification and fees are commonly required for certified copies.
Marriage & Divorce Records
Types of records available
Marriage licenses and marriage certificates (Juab County)
- Marriage license application/license: Issued by the Juab County Clerk/Auditor for marriages performed in Utah.
- Marriage certificate/record: The officiant returns a completed certificate to the issuing clerk for recording as the official county marriage record.
Divorce records
- Divorce decree: The final court order dissolving the marriage, issued and maintained by the Utah District Court in the county where the case was filed (Juab County is within Utah’s district court system).
- Divorce case file: The underlying court file may include pleadings, motions, findings, parenting plans, support orders, property division orders, and related documents.
Annulment records
- Annulment decree: A court order declaring a marriage void or voidable, maintained by the Utah District Court as part of the case file, similar to divorce proceedings.
State-level vital records (marriage and divorce)
- Utah maintains statewide vital records for marriages and divorces through the Utah Office of Vital Records and Statistics, which provides certified and eligible-copy access under state law.
Where records are filed and how they can be accessed
Juab County marriage records
- Filed/recorded with: Juab County Clerk/Auditor (marriage licenses issued and completed certificates recorded in county records).
- Access:
- County offices provide access to recorded marriage documents and may issue certified copies consistent with Utah law and county procedures.
- Requests generally require identification and may require payment of statutory or county fees.
Divorce and annulment records (court records)
- Filed with: Utah District Court (the court that handled the case maintains the official case file and decree).
- Access:
- Court clerks provide access to case records and certified copies of decrees, subject to court rules, sealing orders, and redaction requirements.
- Some docket information and documents may be accessible through Utah’s online court records systems when available; access is constrained by user eligibility, case type, and privacy rules.
Utah Office of Vital Records and Statistics
- Maintains: Statewide marriage and divorce vital records.
- Access:
- Issues certified copies or certified “vital record” forms to eligible requesters under Utah statute and administrative rules.
- Identity verification and fees apply; eligibility is limited for non-public records.
Typical information included in these records
Marriage license / marriage record
- Full legal names of parties
- Date and place of marriage (and/or date issued vs. date solemnized)
- Ages or dates of birth (varies by form and era)
- Places of residence at time of application (often included)
- Officiant name/title and authority to solemnize
- Witness information (when required by the form used)
- County recording information (book/page or instrument number; recording date)
Divorce decree
- Court name and jurisdiction; case number
- Names of the parties
- Date of decree and judge’s signature
- Orders related to:
- Dissolution of marriage
- Property and debt division
- Spousal support (alimony) where ordered
- Child custody, parent-time, child support, and other child-related orders where applicable
- Name restoration (when granted)
Annulment decree
- Court name and case number
- Names of the parties
- Findings and legal basis for annulment under Utah law
- Orders addressing status of the marriage, and related issues (property, support, custody) when included
Privacy or legal restrictions
Marriage records
- County-recorded marriage records are commonly treated as public records for basic facts (names, date, location), but access to certified copies and certain personal data elements can be limited by Utah law, county policy, and identity verification requirements.
- Recent vital records are subject to Utah vital records statutes and rules governing who may obtain certified copies and what identifying documentation is required.
Divorce and annulment court records
- Utah courts generally treat case files as public unless classified as private/protected, sealed by court order, or subject to statutory restrictions.
- Records involving minors, sensitive personal identifiers, and certain allegations may be restricted, redacted, or filed as non-public under Utah court rules.
- Certified copies of decrees are available through the court clerk, subject to access restrictions and any sealing/redaction requirements.
State vital records restrictions
- The Utah Office of Vital Records and Statistics applies statewide eligibility rules and identification requirements for certified copies of marriage and divorce vital records, especially for more recent records.
Reference agencies (Utah)
- Juab County Clerk/Auditor (marriage licensing/recording): https://www.juabcounty.gov/
- Utah State Courts (district court records and access rules): https://www.utcourts.gov/
- Utah Office of Vital Records and Statistics (statewide vital records): https://vitalrecords.utah.gov/
Education, Employment and Housing
Juab County is in central Utah along the I‑15 corridor, anchored by Nephi (the county seat) and smaller communities such as Mona, Levan, and Eureka. The county is part of the Wasatch Front labor market orbit while retaining a largely small‑town and rural settlement pattern. Population size and many of the “most recent” socio‑economic indicators are tracked annually through the U.S. Census Bureau’s American Community Survey (ACS) and state labor statistics; where a county-specific metric is not published in a single standard table (or varies by reporting system), closely related state/county administrative sources are used and noted.
Education Indicators
Public school system (counts and school names)
Juab County’s public K–12 system is primarily served by Juab School District (Nephi/Mona/Levan area). A second public district, Tintic School District, serves Eureka and parts of the western portion of the county (in addition to areas outside the county in some configurations over time).
Juab School District (typical schools listed by district/campus directories):
- Juab High School (Nephi)
- Juab Middle School (Nephi)
- Nephi Elementary (Nephi)
- Red Cliffs Elementary (Nephi)
- Mona Elementary (Mona)
- Levan Elementary (Levan)
Tintic School District (Eureka area):
- Tintic High School (Eureka)
- Tintic Elementary School (Eureka)
School inventories can change (consolidations, grade reconfigurations, renamed campuses). The most current school lists are maintained through district websites and the Utah State Board of Education (USBE) school directory and report cards (see USBE’s school and district information portal).
Student–teacher ratios and graduation rates
- Student–teacher ratios (proxy): Countywide ratios are commonly reported through federal school universe files and USBE summaries, but a single “Juab County ratio” is not consistently published as a standalone statistic across all sources. As a practical proxy, Utah’s public-school student–teacher ratio is commonly cited around the high teens to ~20:1 in recent years, with rural districts often varying by school size and grade configuration. The most defensible current figures are the district- and school-level ratios in USBE profiles (USBE portal above).
- Graduation rates: Four‑year cohort graduation rates are published by USBE by high school and district. County graduation performance typically tracks the district high schools (Juab High School; Tintic High School). The most recent official values are available via USBE report cards for each high school (USBE portal above).
Adult educational attainment (ACS)
Adult education levels for Juab County are best represented by the ACS 5‑year estimates (most current county small-area product). Key measures:
- High school diploma or higher (age 25+): ACS county estimate (latest 5‑year release).
- Bachelor’s degree or higher (age 25+): ACS county estimate (latest 5‑year release).
These are published in standard ACS tables (e.g., Educational Attainment) via the U.S. Census Bureau. The county’s most recent official values can be retrieved from data.census.gov by searching “Juab County, Utah educational attainment.”
Notable programs (STEM, CTE, AP)
- Career and Technical Education (CTE): Utah public high schools generally offer state-aligned CTE pathways (agriculture, business/marketing, family & consumer sciences, skilled & technical sciences, etc.). Juab and Tintic programs are reflected in district course catalogs and USBE CTE reporting; Utah’s CTE framework is documented by USBE (see USBE Career and Technical Education).
- Advanced Placement / concurrent enrollment: Utah high schools frequently provide AP offerings and/or concurrent enrollment with Utah colleges; availability varies by school size. Official course access and outcomes are reported in school report cards and district counseling/course guides (USBE portal above).
School safety measures and counseling resources (standard district practice)
- Safety: Utah districts typically follow state requirements for emergency operations planning, secure entry practices, drills, and coordination with local law enforcement. School safety planning and compliance are overseen through state and district policies (see USBE Safe & Healthy Schools).
- Counseling and student supports: School counseling services (academic planning, social-emotional supports, crisis response) are standard in Utah secondary schools; staffing levels and specific services are typically documented in district handbooks and school profiles.
Employment and Economic Conditions
Unemployment rate (most recent year available)
- Unemployment rate: The most recent official county unemployment rates are published by the U.S. Bureau of Labor Statistics (LAUS) and summarized by the Utah Department of Workforce Services (DWS). Juab County’s latest annual average and most recent monthly rates are available through Utah DWS Workforce Information and BLS local area data.
Major industries and employment sectors
Juab County’s employment base typically reflects:
- Local government and education (school district and public services)
- Health care and social assistance
- Retail trade and accommodation/food services (serving local demand and I‑15 traffic)
- Construction (residential growth and regional projects)
- Manufacturing and transportation/warehousing (to the extent present in the I‑15 corridor)
- Mining and related services (notably around the Tintic/Eureka area historically, with activity varying over time)
Sector shares by industry are available through ACS “Industry by Occupation” tables and through state labor market dashboards. The most direct county profile tables are accessible via ACS industry/occupation tables and Utah DWS county profiles.
Common occupations and workforce breakdown
Typical occupation groupings (ACS) include:
- Management, business, science, and arts
- Service occupations
- Sales and office
- Natural resources, construction, and maintenance
- Production, transportation, and material moving
The most recent distribution for Juab County is published in ACS occupation tables on data.census.gov.
Commuting patterns and mean commute time
- Commute mode: Juab County commuters are predominantly drive-alone, with smaller shares carpooling; public transit use is limited due to rural geography (ACS commuting tables).
- Mean travel time to work: Reported by ACS as mean commute time (minutes). Juab County’s mean commute is typically influenced by out‑commuting to Utah County/Salt Lake County employment centers along I‑15; the exact current mean is available in ACS table “Travel Time to Work” at data.census.gov.
Local employment versus out‑of‑county work
- Net out‑commuting pattern: Juab County commonly functions as a residential base for workers employed in adjacent counties (especially Utah County) due to I‑15 connectivity. The most authoritative breakdown is provided by the U.S. Census Bureau’s LEHD Origin‑Destination Employment Statistics (LODES), which show where residents work and where local jobs are filled from (see OnTheMap (LEHD)).
Housing and Real Estate
Homeownership rate and rental share (ACS)
- Homeownership vs. renter occupancy: Juab County’s housing tenure split is published in ACS (owner-occupied vs renter-occupied). The latest official percentages are available through ACS “Tenure” tables on data.census.gov. The county generally trends high homeownership relative to large metro cores, consistent with small-city/rural Utah patterns.
Median property values and recent trends
- Median home value: The ACS provides median value of owner-occupied housing units (most recent 5‑year estimate). County-level market trends (year-over-year pricing) are often better captured by real estate listing indices, but those are not official statistics and can differ by methodology.
- Trend context (proxy): Like much of Utah, Juab County experienced rapid home price appreciation in the early 2020s followed by slower growth and increased sensitivity to interest rates. The most defensible countywide median value remains the ACS median value series on data.census.gov, supplemented by state/local assessor data for assessed values.
Typical rent prices (ACS)
- Median gross rent: ACS reports median gross rent for Juab County. The current value is available via ACS median gross rent tables. Smaller rental inventory can produce more volatility in median rent estimates year to year.
Types of housing
- Dominant forms: Detached single‑family homes are the most common housing type in Nephi, Mona, and rural areas; manufactured homes and rural lots are also present.
- Apartments and multifamily: Concentrated mainly in and near Nephi’s core and along primary corridors, with a relatively smaller share than urban counties (consistent with ACS “Units in Structure” profiles).
Neighborhood characteristics (proximity to schools/amenities)
- Nephi: Most concentrated access to schools (elementary through high school), grocery and services, and I‑15 access; newer subdivisions tend to be on the community edges where developable land is available.
- Mona and Levan: Smaller-town settings with elementary access locally and longer trips for some secondary services; commuting access generally depends on highway connections to Nephi/I‑15.
- Eureka (Tintic area): Historic mining-town layout with local K–12 campus presence and longer distance to full-service amenities in larger Wasatch Front cities.
Property tax overview (rate and typical homeowner cost)
- Rates and bills: Utah property taxes are levied by overlapping taxing entities (county, cities, school districts, special districts) and expressed as effective rates that vary by location within the county. Utah also applies the primary residential exemption, reducing taxable value for owner-occupied primary residences.
- Typical homeowner cost (best available official proxy): The ACS reports median real estate taxes paid for owner-occupied housing units, which is the most comparable countywide statistic. The latest median tax paid for Juab County is available in ACS housing cost tables on data.census.gov. For official certified rates and assessed values by parcel/jurisdiction, county assessor/treasurer publications provide the authoritative detail, but a single countywide “average rate” is not a stable measure because rates differ by taxing area and property classification.