Nemaha County GIS Maps
Nemaha County, Kansas, has 10,273 residents and covers 717.4 square miles. The population grew 0.9% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Nemaha County is 20131.
Sabetha is the county's largest population center. Nemaha County also includes 9 zip codes, 5 public school districts and 39 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.
Nemaha County Trends
- Population
- 10,273▴
- Median Home Value
- $196,100▴
- K-12 Enrollment
- 3,171▾
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.
Nemaha 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.
Nemaha County Population
Nemaha County had 10,273 residents in 2020. That was 0.9% higher than in 2010. Nemaha County had 444 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 14 people per square mile. Some of the county's most populated postal areas include Sabetha, Seneca and Centralia.
Population Trend in Nemaha County KS
Nemaha County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Nemaha County Zip Codes
Nemaha County has 9 zip codes. Some of the county's most populated zip codes include Sabetha (66534), Seneca (66538) and Centralia (66415). Sabetha is the largest zip by population, with about 3,704 residents or 36% of the county total. Together, the three largest zips account for about 77% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Nemaha County KS
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 66534 | Sabetha | 3,704 | ▾ -0.6% |
| 66538 | Seneca | 3,342 | ▴ 2.4% |
| 66415 | Centralia | 848 | ▾ -4.2% |
| 66550 | Wetmore | 555 | ▾ -8.6% |
| 66404 | Baileyville | 522 | ▾ -1.5% |
| Download all zip code data | |||
Nemaha County Zip Code populations and trends per most recent census data.
Nemaha County Demographics
Nemaha County has a median age of 40, which makes the county a little older than Kansas overall. About 27.7% of residents are under 18, while 19.6% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is Under 18 at about 27.7% of the population, which suggests the county has a notable share of children and family households. About 30.1% 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 Nemaha County KS
Median Age
40
Under 18
27.7%
Age 65+
19.6%
Bachelor's+
30.1%
Nemaha County School Districts
Nemaha County is served by 5 public school districts with 3,171 students enrolled in 2024. The largest districts on the county map are Prairie Hills Unified 113, Nemaha Unified 115 and Vermillion Unified 380. Those three districts account for about 74% of public school enrollment in the map area. Total enrollment has grown modestly since 2017 across the districts shown on the county map.
Largest School Districts by Enrollment in Nemaha County KS
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Prairie Hills Unified School District 113 | 953 | 30.1% | ▴ 3% |
| Nemaha Unified School District 115 | 751 | 23.7% | ▾ -4% |
| Vermillion Unified School District 380 | 644 | 20.3% | ▾ -0.5% |
| North Jackson Unified School District 335 | 497 | 15.7% | ▾ -2.7% |
| Onaga-Havensville-Wheaton Unified School District 322 | 326 | 10.3% | ▾ -5% |
| Download all school district data | |||
Nemaha County school district enrollment and trends per most recent NCES reporting data.
Nemaha County Housing & Real Estate
Nemaha County has a median home value of $196,100 and a median gross rent of $726. About 79% 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 $248,000 and homes spent about 123 days on the market.
Nemaha County Housing Mix
Nemaha County housing mix: owner, renter and vacant units.
Nemaha County Housing Trends
Nemaha County median home value and rent trend (last 5 years).
Businesses in Nemaha County, KS
Nemaha County has 520 business listings across 207 categories. The largest categories in Nemaha County business listings are Churches & Religious Organizations (22, 4.2%), Agricultural Service (13, 2.5%), and Insurance Agencies (11, 2.1%). The full Nemaha County business listings dataset includes names, categories, addresses and contact details where available. Nemaha County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Nemaha County, KS
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 22 | 4.2% |
| Agricultural Service | 13 | 2.5% |
| Insurance Agencies | 11 | 2.1% |
| Gas Stations | 11 | 2.1% |
| Auto Repair | 9 | 1.7% |
| Retirement Home | 8 | 1.5% |
| Libraries | 8 | 1.5% |
| Community & Nonprofits | 8 | 1.5% |
| Forestry Service | 8 | 1.5% |
| Public And Government Association | 7 | 1.3% |
Nemaha County Business Listings
| Business | Category | City |
|---|---|---|
| Suite on Main | Accommodation | Seneca |
| Haug CPA, LLC Tax & Accounting Services | Accountant | Seneca |
| Ag Partners Cooperative | Agricultural Cooperatives | Seneca |
| J-Six Enterprises | Agricultural Service | Seneca |
| RedIron Ag Repair LLC | Agriculture | Centralia |
| Nemaha County EMS | Ambulance And Ems Services | Seneca |
| Buzz Cafe and Oxen House | American Restaurants | Sabetha |
| Buggy Days | Antique Store | Seneca |
| J & S Scales | Appliance Manufacturer | Sabetha |
| Waters Hardware (Sabetha) | Appliance Repair Service | Sabetha |
| Download Nemaha County business listings | ||
Nemaha County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Nemaha County Basemaps
Nemaha 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 Nemaha County Data Package
This page shows a preview of what's included in the Nemaha 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 Nemaha County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.