Cheyenne County is located in the far northwestern corner of Kansas, bordering Nebraska to the north and Colorado to the west, within the High Plains region. Established in 1885 and named for the Cheyenne people, the county developed as part of the broader settlement and agricultural expansion of western Kansas in the late 19th century. It is sparsely populated and small in scale, with roughly 2,500 residents, and is characterized by a predominantly rural landscape of open prairie, dryland farming, and cattle ranching. Agriculture and related services form the core of the local economy, supported by small towns that serve as regional trade and community centers. The county’s terrain is generally flat to gently rolling, typical of the Great Plains, with a semi-arid climate that shapes land use and water management. The county seat is St. Francis.

Cheyenne County Local Demographic Profile

Cheyenne County is located in far northwestern Kansas along the Colorado–Nebraska border, within the High Plains region. It is administered from the county seat of St. Francis; for local government and planning resources, visit the Cheyenne County official website.

Population Size

According to the U.S. Census Bureau QuickFacts for Cheyenne County, Kansas, the county’s population was 2,616 (2020 Census) and 2,566 (2023 estimate).

Age & Gender

According to the U.S. Census Bureau’s data.census.gov (American Community Survey tables for county age and sex), Cheyenne County’s age structure is summarized using standard Census age bands (under 18, 18–64, and 65+). Exact percentages vary by ACS 5-year release and table selection; the authoritative county profile can be accessed by searching Cheyenne County, Kansas and selecting Age and Sex tables.

The county’s gender composition (male/female share) is also reported in the same ACS “sex” tables on data.census.gov. For a single-page summary that includes sex and age highlights, the QuickFacts profile provides a consolidated view based on the Census Bureau’s most recent releases.

Racial & Ethnic Composition

According to the U.S. Census Bureau QuickFacts profile, Cheyenne County’s racial composition is reported across standard Census race categories (e.g., White; Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race; Two or More Races), and Hispanic or Latino ethnicity is reported separately.

For detailed counts and percentages by race alone, race in combination, and Hispanic origin, the primary source is data.census.gov, which provides county-level tables derived from the decennial Census and the American Community Survey.

Household & Housing Data

According to the U.S. Census Bureau QuickFacts for Cheyenne County, the county’s household and housing characteristics are summarized using standard Census measures, including:

  • Number of households
  • Owner-occupied housing rate
  • Median value of owner-occupied housing units
  • Median gross rent
  • Persons per household
  • Total housing units and related occupancy measures

For table-level detail (including household type, household size distribution, vacancy status, and housing tenure), the authoritative source is data.census.gov (ACS 5-year housing and household tables for Cheyenne County, Kansas).

Email Usage

Cheyenne County, Kansas is a sparsely populated High Plains county where long distances between towns and low population density can raise per‑household infrastructure costs, influencing how reliably residents can use email and other online services. Direct county-level email usage statistics are not typically published; broadband subscription and device access are standard proxies used to infer likely email access.

Digital access indicators for Cheyenne County (households with broadband subscriptions and households with a computer) are available through the U.S. Census Bureau data portal (ACS), which reports local connectivity and device availability but not email use specifically. Age structure matters because older populations generally show lower adoption of digital communication tools; county age distribution can be summarized from the same ACS demographic tables. Gender distribution is also reported in ACS; it is usually a weaker predictor of email adoption than age and access.

Connectivity limitations in rural western Kansas commonly include fewer provider choices and variable service quality outside city limits; the FCC National Broadband Map provides location-based availability and technology details that help contextualize local email accessibility.

Mobile Phone Usage

Cheyenne County is in far northwestern Kansas along the Colorado and Nebraska borders. It is predominantly rural, with a large land area, low population density, and an economy and settlement pattern tied to agriculture and small towns (notably St. Francis and Bird City). The county’s flat to gently rolling High Plains terrain generally supports wide-area radio propagation, but long distances between homes, limited tower density, and backhaul constraints can affect mobile coverage quality and capacity. Basic county geography and population context are available through the U.S. Census Bureau’s QuickFacts for Cheyenne County, Kansas.

Key distinction: network availability vs. household adoption

  • Network availability refers to whether mobile broadband (4G LTE/5G) service is reported as available in a location based on provider filings and coverage models.
  • Household adoption refers to whether residents actually subscribe to and use mobile service and/or mobile internet, which is influenced by affordability, device ownership, plan limits, and whether fixed broadband is available.

County-level reporting frequently provides stronger detail on availability than on adoption. Public adoption indicators are often published at state level or for larger geographies, and should not be treated as county-specific without a cited county estimate.

Mobile penetration and access indicators (county-level availability and adoption proxies)

Availability (coverage as a proxy for “access”)

  • The primary public sources for local mobile broadband availability are the FCC National Broadband Map datasets and map interface, which report provider-submitted coverage for mobile broadband (including LTE and 5G) and allow viewing at address/hexagon scales:
  • Availability in the FCC map is not the same as observed user experience; it is based on standardized reporting and modeling and can overstate coverage in sparsely populated areas.

Adoption (household/mobile subscription measures)

  • The U.S. Census Bureau’s American Community Survey (ACS) produces internet subscription measures (including cellular data plans) but small, rural counties can have limited precision in one-year estimates and are often better represented in multi-year products. The authoritative source for the definitions and tables is:
  • For Kansas, statewide broadband planning resources commonly summarize adoption and affordability indicators and may include model-based small-area estimates, though not always with county-level detail explicitly reported for mobile-only adoption:
  • Limitation: A single, definitive county-level “mobile penetration rate” (share of residents with a mobile subscription) is not typically published as an official statistic for individual counties in a way that is directly comparable over time. Where ACS “cellular data plan” measures are used, they reflect household subscription types rather than carrier subscription counts.

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

4G LTE

  • In rural Kansas counties, LTE is generally the foundational mobile broadband layer and is the most consistently reported technology across large geographic areas.
  • The FCC map provides the most direct public view of LTE availability by provider for specific locations:

5G (including “5G NR” layers)

  • 5G availability in rural counties is often present in limited footprints compared with urban areas, with performance varying by spectrum band and tower spacing. Public, location-specific 5G availability is also primarily documented via the FCC map:
  • Limitation: Public datasets typically indicate reported availability, not the share of residents actively using 5G-capable devices or plans. County-level “5G usage share” is not generally published in official statistics.

Mobility, roaming, and cross-border dynamics

  • Cheyenne County’s position at the Kansas–Colorado–Nebraska corner can create coverage patterns influenced by tower placement and backhaul on both sides of state lines. The FCC map remains the most standardized reference for cross-border availability, but it does not quantify roaming reliance or in-market/out-of-market carrier usage at the county level.

Common device types (smartphones vs. other devices)

  • Public, county-specific breakdowns of device type (smartphone vs. flip phone/basic phone, hotspot-only devices, tablets) are generally not published as official statistics.
  • The most defensible public indicator is household subscription type rather than device inventory. ACS internet subscription tables distinguish whether a household has a cellular data plan and/or other internet subscriptions, but ACS does not directly enumerate “smartphone ownership” at the county level in a way that is routinely published as a standard table for all counties:
  • In rural areas, mobile connectivity is commonly accessed through:
    • Smartphones (dominant general-purpose device category nationally, but not quantifiable here at county level from official sources)
    • Hotspot/tethering for home internet supplementation, especially where fixed options are limited (usage patterns are not consistently reported at county level)
  • Limitation: Without carrier or survey microdata specific to Cheyenne County, definitive shares of smartphone vs. non-smartphone devices cannot be stated.

Demographic and geographic factors influencing mobile usage and connectivity

Population density and settlement pattern

  • Low density increases the cost per user of tower construction and maintenance, often leading to fewer sites and greater reliance on lower-frequency coverage. This affects:
    • Coverage gaps in remote areas
    • Indoor signal strength variability in some structures
    • Capacity constraints during localized demand spikes
  • County population and housing distribution context is available via:

Terrain and land use

  • The High Plains’ generally open terrain supports line-of-sight propagation, which can help extend coverage from fewer towers compared with heavily forested or mountainous regions. However, distance and limited infrastructure remain constraints for consistent high-capacity service.

Income, age structure, and affordability constraints (adoption-side drivers)

  • Adoption of mobile data plans and higher-end devices is influenced by income, age distribution, and affordability, but county-specific mobile-only adoption and device ownership indicators are limited in standard public releases.
  • The most commonly cited public sources for local socioeconomic context are ACS and QuickFacts:

Fixed-broadband availability as a driver of mobile reliance

  • In rural counties, limited fixed broadband options can increase reliance on mobile broadband for primary or backup connectivity. Distinguishing availability from adoption is important:
    • Fixed availability constraints can raise mobile dependence (usage pattern)
    • Mobile availability constraints can still limit effective substitution for fixed service
  • FCC provides fixed and mobile broadband availability in the same mapping platform, supporting side-by-side comparisons for specific locations:

Data limitations specific to county-level mobile usage

  • Network availability is best measured through standardized reporting (FCC map), but availability does not equal reliable service at all times/places.
  • Household adoption and device type data are limited at the county level; ACS provides household subscription categories but does not provide a comprehensive, routinely published county device-type distribution.
  • Actual usage patterns (share of traffic on LTE vs. 5G, average speeds experienced, data consumption) are typically held by carriers or proprietary measurement firms and are not generally available as definitive county-level public statistics.

Primary public sources for Cheyenne County connectivity reference

Social Media Trends

Cheyenne County is in far northwest Kansas along the Nebraska and Colorado borders, with St. Francis as the county seat. It is predominantly rural and sparsely populated, with an economy tied largely to agriculture and related services. These characteristics generally align with lower broadband density, longer travel distances for services, and heavier reliance on mobile connectivity—factors that shape how residents access and use social platforms.

User statistics (penetration / active use)

  • County-specific social-media penetration rates are not published in major public datasets (most national surveys report at the U.S. or state level, not at the county level).
  • National benchmarks provide the most reliable proxy:
  • Connectivity context that influences usage levels in rural counties:
    • Rural adults are less likely than urban/suburban adults to report home broadband adoption in Pew’s internet/broadband reporting, which tends to increase reliance on smartphones for social access. Source: Pew Research Center’s Internet/Broadband Fact Sheet.
    • Federal broadband availability/technology context is tracked by the FCC, which is commonly used to understand rural connectivity constraints. Source: FCC National Broadband Map.

Age group trends (who uses social media most)

Based on Pew’s U.S. adult estimates (2023–2024 updates, reported as “% of adults in each age group who say they ever use social media”):

Implication for Cheyenne County: With rural population structures often skewing older than metropolitan areas, overall social-media penetration typically reflects stronger use among working-age adults and comparatively lower use among older residents.

Gender breakdown

Pew reports platform usage differences by gender (U.S. adults), with many platforms showing modest gaps and some showing larger skews. Examples commonly cited in Pew tables:

County-level gender-by-platform rates are not published in widely used public surveys; national patterns are the most defensible reference.

Most-used platforms (share of U.S. adults)

Pew’s U.S. adult platform usage levels (latest published in the fact sheet tables) provide the most reliable percentage baselines:

Rural-county relevance: In rural areas, high-coverage, general-purpose platforms (notably Facebook and YouTube) tend to dominate due to broad age reach and utility for community information, events, local news sharing, and practical how-to content.

Behavioral trends (engagement patterns / preferences)

  • Mobile-centric access: Rural residents are more likely to face constraints in fixed home broadband, which increases reliance on smartphones for social media and video. This aligns with Pew’s rural/urban broadband patterns. Source: Pew broadband and internet adoption reporting.
  • Community-information use: Facebook Groups and local pages commonly serve as de facto community bulletin boards in rural counties, concentrating engagement around:
    • School activities and sports
    • Weather and road conditions
    • Community events, fairs, and local commerce
  • Video as a primary format: YouTube’s high overall reach makes it a central platform for entertainment and instructional content; video also tends to perform strongly on Facebook feeds.
  • Age-linked platform clustering: Younger adults over-index on short-form video and visual platforms (TikTok, Instagram, Snapchat), while older adults concentrate more on Facebook and YouTube. Source: Pew platform-by-age tables.
  • Messaging and private sharing: Usage of messaging features embedded in major platforms (Facebook Messenger, Instagram DMs, WhatsApp) is common nationally; rural users often rely on these tools for coordination when in-person access to services and social hubs is more dispersed.

Family & Associates Records

Cheyenne County, Kansas family-related vital records (birth and death certificates) are created and maintained at the state level by the Kansas Department of Health and Environment (KDHE) Office of Vital Statistics, not by the county. Certified copies are ordered through KDHE online or by mail via the state vital records portal (KDHE Office of Vital Statistics). Kansas birth and death records are restricted for defined periods (commonly 100 years for births and 50 years for deaths) and are released as certified copies only to eligible requestors under state rules.

Adoptions are handled through Kansas courts; adoption files are generally confidential and access is restricted. For local court-related records, the 15th Judicial District Court (serving Cheyenne County) provides access to certain case information through the Kansas Judicial Branch (15th Judicial District). Public court case searches are available through the Kansas District Court Public Access Portal (Kansas District Court Public Access Portal), subject to redaction and access limits for protected case types.

Cheyenne County also maintains records that can document family/associates indirectly, such as real estate filings (deeds, mortgages) and some local administrative records. County office contact information and in-person access points are published by Cheyenne County (Cheyenne County, Kansas). Privacy restrictions commonly apply to juvenile matters, sealed court files, and records containing sensitive personal identifiers.

Marriage & Divorce Records

Types of records available

  • Marriage license and marriage certificate records

    • Marriage license applications and related documents are created at the county level when a couple applies to marry.
    • Recorded/returned marriage certificates (proof that the marriage was solemnized and filed) are maintained as part of the county marriage record set and are also reported to the state for vital statistics purposes.

  • Divorce records

    • Divorce case files are maintained as district court records. These commonly include the divorce petition, summons/service, motions, journal entries, the final decree of divorce, and related orders.
    • Some divorces may also include separation or post-decree proceedings (e.g., modifications to custody/support), which remain part of the court file.

  • Annulments

    • Annulment actions are handled through the district court as civil domestic relations cases. Records generally consist of pleadings and the court’s final order/judgment, similar in structure to divorce case records.

Where records are filed and how they can be accessed

  • Marriage records (county level)

    • Filed/maintained by: the Cheyenne County Clerk (marriage licensing and recording functions are handled at the county clerk level in Kansas counties).
    • Access: requests are typically handled through the county clerk’s office. The office can provide certified copies or non-certified copies according to local procedures and Kansas law. Some older records may be available through county record archives or local historical repositories when transferred under county retention practices.

  • Divorce and annulment records (court level)

    • Filed/maintained by: the Cheyenne County District Court (Kansas district courts maintain case files for divorces, annulments, and related domestic relations matters).
    • Access: copies are requested from the clerk of the district court. Kansas courts also maintain electronic case information through the Kansas Judicial Branch’s public access systems, which may provide docket/case-register information; availability of documents varies by access rules and redaction requirements.
    • Kansas Judicial Branch (general court information): https://www.kansasjudicialbranch.org/

  • State-level vital records (marriage and divorce verification)

    • Maintained by: the Kansas Department of Health and Environment (KDHE), Office of Vital Statistics for statewide vital event records (including marriage and divorce event data reported to the state).
    • Access: state-issued certified copies and verifications are requested through KDHE, subject to eligibility requirements and state rules.
    • KDHE Vital Statistics (general): https://www.kdhe.ks.gov/1185/Vital-Records

Typical information included in these records

  • Marriage license/application and recorded certificate

    • Full names of the parties (including prior/maiden names where applicable)
    • Dates of birth and ages at time of application
    • Places of residence and sometimes birthplaces
    • Date the license was issued and the county of issuance
    • Date and place of marriage ceremony
    • Officiant name/title and signature
    • Witness information (when required by the form used)
    • Signatures of the parties and/or officiant, and recording/filing notations

  • Divorce decree and case file

    • Case caption (names of parties), case number, and court venue (judicial district/county)
    • Date of filing and dates of hearings/orders
    • Grounds/legal basis asserted and jurisdictional findings
    • Terms of the decree: dissolution date, division of property and debts, restoration of a former name (when ordered)
    • Parenting orders: legal custody, parenting time, child support, and health insurance provisions
    • Spousal maintenance orders (when applicable)
    • Any protection orders, restraining provisions, or other ancillary orders (where entered)
    • Signatures of the judge and file-stamp/entry on the journal record

  • Annulment orders and case file

    • Case caption, case number, and jurisdictional findings
    • Findings regarding validity of the marriage under Kansas law
    • Orders regarding children (custody/support) and property allocations when addressed
    • Final judgment/order and filing/journal entry details

Privacy or legal restrictions

  • Marriage records

    • Kansas treats marriage records as vital records. Access to certified copies is generally regulated by state law and KDHE rules, and may require proof of identity and that the requester meets eligibility criteria. County clerks often follow the same framework for issuing certified copies.
    • Some information may be withheld or limited in the version provided to the public (for example, to reduce identity theft risk), depending on the format and the issuing authority’s policies.

  • Divorce and annulment court records

    • Court case registers/dockets are generally public, but specific documents or information may be restricted by law or court order.
    • Common restrictions include:
      • Sealed records by judicial order
      • Confidential child-related information and protected personal identifiers (e.g., Social Security numbers, certain financial account numbers), which may be redacted
      • Protected addresses or identifying information in cases involving safety concerns, under applicable Kansas court rules and statutes
    • Certified copies of decrees are issued by the clerk of the district court; access to full files may be limited where sealing, redaction, or confidentiality rules apply.

Education, Employment and Housing

Cheyenne County is the far‑northwest county of Kansas on the Nebraska and Colorado borders, anchored by the county seat of St. Francis and the city of Bird City. It is a sparsely populated, predominantly rural Great Plains community with an aging age profile and low population density, where public services, employment, and housing markets are shaped by long travel distances, small enrollments, and an economy tied to agriculture and local government.

Education Indicators

Public schools (district structure and school names)

  • Cheyenne County is served primarily by two unified school districts:
    • USD 297 (St. Francis): commonly includes St. Francis Elementary School and St. Francis Junior/Senior High School.
    • USD 103 (Cheylin): a consolidated district serving Bird City and surrounding rural areas; commonly includes Cheylin Elementary and Cheylin Junior/Senior High School.
  • School naming and grade configurations can change over time in small districts; the most current directory lists are maintained by the Kansas State Department of Education via its public district information pages (see the Kansas State Department of Education (KSDE)).

Student–teacher ratios and graduation rates

  • Student–teacher ratios in very small rural Kansas districts tend to be lower than state averages due to small enrollments; district‑level ratios and staffing are reported annually through KSDE’s district and building reports. A countywide ratio is not typically published as a single statistic; district/building reports are the standard proxy.
  • Graduation rates are reported by KSDE and are generally high in many rural Kansas districts, but the exact, most‑recent on‑record rates should be taken from the district/building outcome reports rather than county summaries due to small cohort sizes. KSDE is the authoritative source for the latest cohort graduation metrics.

Adult educational attainment (county)

  • County adult attainment is reported by the U.S. Census Bureau’s American Community Survey (ACS). For the most recent 5‑year estimates:
    • High school diploma or higher (age 25+): ACS county profile indicator (Cheyenne County typically reports a large majority with at least high school completion).
    • Bachelor’s degree or higher (age 25+): ACS county profile indicator (Cheyenne County typically reports below the Kansas statewide share, consistent with many rural Great Plains counties).
  • The most recent percent estimates are available in the county profile tables at data.census.gov (ACS 5‑year).

Notable programs (STEM, vocational, AP)

  • Kansas high schools commonly participate in Career and Technical Education (CTE) pathways and may offer concurrent enrollment/dual credit through regional/community college partnerships; specific pathway availability is district‑dependent and is reported through district program information and KSDE CTE reporting.
  • Advanced Placement (AP) offerings in very small high schools are often limited and may be supplemented by online coursework; confirmed course inventories are maintained by the districts.

School safety measures and counseling resources

  • Kansas districts generally maintain:
    • building access controls and visitor sign‑in procedures,
    • emergency operations planning and drills,
    • student support staffing (school counselor and/or shared mental‑health resources), often shared across buildings in small districts.
  • District policy handbooks and building safety plans are the standard source for site‑specific measures; statewide school safety guidance is published through KSDE and related Kansas school safety resources.

Employment and Economic Conditions

Unemployment rate (most recent year available)

  • The most current annual unemployment estimates for the county are published by the U.S. Bureau of Labor Statistics/Local Area Unemployment Statistics (LAUS) via the Kansas labor market system. The latest county unemployment rate can be retrieved through the BLS Local Area Unemployment Statistics program and Kansas labor market reporting; county rates in northwest Kansas have typically been low relative to national averages in recent years, with volatility due to small labor force size.

Major industries and employment sectors

  • Cheyenne County’s employment base aligns with rural western Kansas patterns:
    • Agriculture (farming, ranching, and related services) as a foundational sector,
    • Local government, education, and health services (public schools, county/city services, clinics),
    • Retail trade and accommodation/food services concentrated in St. Francis and along regional travel routes,
    • Transportation/warehousing and construction tied to agricultural supply chains and regional projects.
  • Industry composition and counts are reported in ACS “Industry by occupation” tables and Kansas labor market profiles; the most recent county industry shares are accessible via ACS tables on data.census.gov.

Common occupations and workforce breakdown

  • Common occupational groups in similar rural counties include:
    • Management and business, office/administrative support, and sales (local services and public administration),
    • Transportation and material moving, construction, and installation/maintenance/repair (infrastructure and agricultural equipment),
    • Production and food preparation/serving (local employers and service economy),
    • Farming, fishing, and forestry occupations, usually small in ACS share but locally significant.
  • ACS “Occupation” tables provide the most recent breakdown for Cheyenne County (5‑year estimates).

Commuting patterns and mean travel time

  • Rural counties in northwest Kansas typically show:
    • a high share of drive‑alone commuting,
    • limited public transit usage,
    • mean commute times generally in the teens to low‑20s minutes, with a minority of longer cross‑county commutes.
  • The authoritative county mean travel time and commuting mode shares are available in ACS commuting tables on data.census.gov.

Local employment versus out‑of‑county work

  • A notable share of residents in small rural counties commute within the county seat area or to nearby counties for specialized jobs, healthcare, and regional services. The most precise local/out‑commuting measurement is available through Census commuting flow products such as OnTheMap (LEHD Origin–Destination), which reports where residents work relative to where they live.

Housing and Real Estate

Homeownership and rental share

  • Cheyenne County is characterized by high homeownership typical of rural Kansas counties and a small rental market concentrated in St. Francis and Bird City. The most recent homeownership and renter shares are reported by the ACS (tenure tables) on data.census.gov.

Median property values and recent trends

  • Median owner‑occupied home values in Cheyenne County are generally below Kansas and U.S. medians, reflecting rural market pricing and limited turnover.
  • Recent trends in many rural western Kansas counties have included moderate nominal appreciation over the past several years, with higher variability due to few sales. The most recent median value estimates are published in ACS “Value” tables; transaction‑based trend lines are more reliably observed through Kansas county appraisal and deed records (sale counts are often thin).

Typical rent prices

  • Median gross rent tends to be lower than statewide metropolitan markets, with limited supply and fewer multi‑unit properties. ACS “Gross rent” tables provide the most recent county median rent estimate.

Types of housing stock

  • The county’s housing stock is predominantly:
    • single‑family detached homes in St. Francis and Bird City,
    • manufactured homes and older housing in smaller settlements and rural areas,
    • farmsteads and rural lots outside city limits,
    • limited small apartment buildings or duplexes relative to urban counties.
  • Housing type distribution is available in ACS “Units in structure” tables.

Neighborhood characteristics (proximity to schools/amenities)

  • In small county seats, schools and core amenities (city offices, libraries, clinics, grocery/retail, and parks) are typically located within short in‑town driving distance of most housing. Rural residences often involve longer travel times to schools and services, with school transportation (bus routes) playing an important role.

Property tax overview (rate and typical cost)

  • Kansas property tax is primarily local (county, city, school district) and is applied to assessed value:
    • Residential property is assessed at 11.5% of market value in Kansas, then multiplied by local mill levies.
  • Countywide effective rates vary by year and jurisdiction; the most defensible “typical homeowner cost” is derived from local appraisal notices and consolidated levy statements rather than a single statewide number. Kansas levy and appraisal context is summarized by the Kansas Department of Revenue, Property Valuation Division, and local levy details are published by county offices.

Data note: Specific district‑level student–teacher ratios, graduation rates, and program inventories for USD 297 and USD 103 are reported annually through KSDE and district publications; countywide single‑number summaries are not consistently published due to small cohort sizes and district‑based reporting. The most recent countywide percentages for education attainment, commuting, housing tenure, value, and rent are published through the ACS 5‑year estimates on data.census.gov.

Table of Contents

Other Counties in Kansas