Washington County GIS Maps
Washington County, Kansas, has 5,530 residents and covers 894.8 square miles. The population declined 4.6% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Washington County is 20201.
Washington is the county's largest population center. Washington County also includes 11 zip codes, 5 public school districts and 48 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
Washington County Trends
- Population
- 5,530▾
- Median Home Value
- $106,100—
- K-12 Enrollment
- 2,099▾
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
Washington County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
Washington County Population
Washington County had 5,530 residents in 2020. That was 4.6% lower than in 2010. Washington County had 953 fewer people in 2020 than it did in 2000, which points to a long-term population decline. The county is fairly spread out, with about 6 people per square mile. Some of the county's most populated postal areas include Washington, Hanover and Clifton.
Population Trend in Washington County KS
Washington County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Washington County Zip Codes
Washington County has 11 zip codes. Some of the county's most populated zip codes include Washington (66968), Hanover (66945) and Clifton (66937). Washington is the largest zip by population, with about 1,534 residents or 28% of the county total. Together, the three largest zips account for about 61% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Washington County KS
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 66968 | Washington | 1,534 | ▾ -5.7% |
| 66945 | Hanover | 1,065 | ▾ -2.8% |
| 66937 | Clifton | 752 | ▾ -15.8% |
| 66953 | Linn | 633 | ▾ -10% |
| 66943 | Greenleaf | 519 | ▴ 2.8% |
| Download all zip code data | |||
Washington County Zip Code populations and trends per most recent census data.
Washington County Demographics
Washington County has a median age of 43.9, which makes the county a little older than Kansas overall. About 24% of residents are under 18, while 23.5% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 25.6% of the population, which points to a solid working-age base. About 23.3% of adults have a bachelor's degree or higher, above the statewide figure of 35.2%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Washington County KS
Median Age
43.9
Under 18
24%
Age 65+
23.5%
Bachelor's+
23.3%
Washington County School Districts
Washington County is served by 5 public school districts with 2,099 students enrolled in 2024. The largest districts on the county map are Barnes Unified 223, Republic County-Hillcrest Rural Schools Unified 109 and Valley Heights Unified 498. Those three districts account for about 68% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, based on district totals from 2017 to 2024.
Largest School Districts by Enrollment in Washington County KS
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Barnes Unified School District 223 | 518 | 24.7% | ▾ -0.4% |
| Republic County-Hillcrest Rural Schools Unified School District 109 | 518 | 24.7% | ▾ -2.1% |
| Valley Heights Unified School District 498 | 398 | 19% | ▾ -2% |
| Washington Co. Schools Unified School District 108 | 355 | 16.9% | ▾ -1.9% |
| Clifton-Clyde Unified School District 224 | 310 | 14.8% | ▾ -1.3% |
| Download all school district data | |||
Washington County school district enrollment and trends per most recent NCES reporting data.
Washington County Housing & Real Estate
Washington County has a median home value of $106,100 and a median gross rent of $547. About 78% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Kansas median, while rents come in below the state average. In March 2026, the median listing price was $166,175 and homes spent about 65 days on the market.
Washington County Housing Mix
Washington County housing mix: owner, renter and vacant units.
Washington County Housing Trends
Washington County median home value and rent trend (last 5 years).
Businesses in Washington County, KS
Washington County has 315 business listings across 150 categories. The largest categories in Washington County business listings are Churches & Religious Organizations (18, 5.7%), Farm (10, 3.2%), and Gas Stations (8, 2.5%). The full Washington County business listings dataset includes names, categories, addresses and contact details where available. Washington County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Washington County, KS
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 18 | 5.7% |
| Farm | 10 | 3.2% |
| Gas Stations | 8 | 2.5% |
| Elementary School | 7 | 2.2% |
| Shipping Center | 7 | 2.2% |
| Grocery Stores | 6 | 1.9% |
| Livestock Breeder | 5 | 1.6% |
| Landmark And Historical Building | 5 | 1.6% |
| Beauty Salons | 5 | 1.6% |
| Community & Nonprofits | 5 | 1.6% |
Washington County Business Listings
| Business | Category | City |
|---|---|---|
| Lutjemeier Farms | Accommodation | Morrowville |
| Bowman Creek Outfitters | Active Life | Haddam |
| Washington Sales Pavilion | Advertising Agency | Washington |
| Central Valley Ag | Agricultural Cooperatives | Haddam |
| Palmer Grain Co Inc | Agricultural Service | Palmer |
| Linn Post and Pipe Inc. | Agriculture | Linn |
| Washington County Veterans Memorial Airport | Airport | Washington |
| Palmer Cafe | American Restaurants | Palmer |
| Country Antiques | Antique Store | Washington |
| The Basement Studio | Art School | Washington |
| Download Washington County business listings | ||
Washington County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Washington County Basemaps
Washington County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Washington County Data Package
This page shows a preview of what's included in the Washington County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border Washington County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.