Riley County GIS Maps
Riley County, Kansas, has 71,959 residents and covers 609.7 square miles. The population grew 1.2% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Riley County is 20161.
Manhattan is the county's largest population center. Riley County also includes 8 zip codes, 6 public school districts and 36 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.
Riley County Trends
- Population
- 71,959▴
- Median Home Value
- $231,200▴
- K-12 Enrollment
- 17,524▾
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.
Riley 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.
Riley County Population
Riley County had 71,959 residents in 2020. That was 1.2% higher than in 2010. Riley County added 9,116 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 118 people per square mile. Some of the county's most populated postal areas include Manhattan, Fort Riley and Manhattan.
Population Trend in Riley County KS
Riley County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Riley County Zip Codes
Riley County has 8 zip codes. Some of the county's most populated zip codes include Manhattan (66502), Fort Riley (66442) and Manhattan (66503). Manhattan is the largest zip by population, with about 44,384 residents or 62% of the county total. Together, the three largest zips account for about 108% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Riley County KS
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 66502 | Manhattan | 44,384 | ▴ 1.2% |
| 66442 | Fort Riley | 16,751 | ▴ 17.3% |
| 66503 | Manhattan | 16,565 | ▴ 23.4% |
| 66506 | 66506 | 3,128 | ▾ -13.4% |
| 66517 | Ogden | 1,666 | ▾ -20.2% |
| Download all zip code data | |||
Riley County Zip Code populations and trends per most recent census data.
Riley County Demographics
Riley County has a median age of 25.2, which makes the county a little younger than Kansas overall. About 16.2% of residents are under 18, while 9.8% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 18 to 24 at about 33.4% of the population, which suggests a younger adult population than many counties. About 48% of adults have a bachelor's degree or higher, above the statewide figure of 35.2%. The county is majority White by population, with Hispanic, Asian, Black and multiracial residents making up a meaningful share of the local mix.
Key Demographics for Riley County KS
Median Age
25.2
Under 18
16.2%
Age 65+
9.8%
Bachelor's+
48%
Riley County School Districts
Riley County is served by 6 public school districts with 17,524 students enrolled in 2024. The largest districts on the county map are Geary County Schools Unified 475, Manhattan-Ogden Unified 383 and Wamego Unified 320. Those three districts account for about 92% 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 Riley County KS
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Geary County Schools Unified School District 475 | 7,293 | 41.6% | ▾ -0.5% |
| Manhattan-Ogden Unified School District 383 | 7,204 | 41.1% | ▴ 0.6% |
| Wamego Unified School District 320 | 1,617 | 9.2% | ▾ -2.5% |
| Riley County Unified School District 378 | 746 | 4.3% | ▴ 4.8% |
| Valley Heights Unified School District 498 | 398 | 2.3% | ▾ -2% |
| Download all school district data | |||
Riley County school district enrollment and trends per most recent NCES reporting data.
Riley County Housing & Real Estate
Riley County has a median home value of $231,200 and a median gross rent of $1,065. About 45% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the Kansas median, while rents come in above the state average. In March 2026, the median listing price was $313,225 and homes spent about 38 days on the market.
Riley County Housing Mix
Riley County housing mix: owner, renter and vacant units.
Riley County Housing Trends
Riley County median home value and rent trend (last 5 years).
Businesses in Riley County, KS
Riley County has 2,931 business listings across 571 categories. The largest categories in Riley County business listings are College University (90, 3.1%), Real Estate Agents (69, 2.4%), and Churches & Religious Organizations (69, 2.4%). The full Riley County business listings dataset includes names, categories, addresses and contact details where available. Riley County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Riley County, KS
| Category | Businesses | Share |
|---|---|---|
| College University | 90 | 3.1% |
| Real Estate Agents | 69 | 2.4% |
| Churches & Religious Organizations | 69 | 2.4% |
| Campus Building | 52 | 1.8% |
| Landmark And Historical Building | 51 | 1.7% |
| Community & Nonprofits | 50 | 1.7% |
| Insurance Agencies | 45 | 1.5% |
| Beauty Salons | 36 | 1.2% |
| Parks & Recreation | 35 | 1.2% |
| Social Service Organizations | 33 | 1.1% |
Riley County Business Listings
| Business | Category | City |
|---|---|---|
| Healthy Recovery Options | Abuse And Addiction Treatment | Manhattan |
| Ford Hall | Accommodation | Manhattan |
| Varney & Associates | Accountant | Manhattan |
| Optimist Park | Active Life | Manhattan |
| Rockhill Chiropractic and Acupuncture | Acupuncture | Manhattan |
| Arnold Sound Recording | Advertising Agency | Manhattan |
| Kansas Corn | Agricultural Cooperatives | Manhattan |
| Agtech Inc | Agricultural Service | Manhattan |
| Manhattan Regional Airport | Airport | Manhattan |
| Kansas Air Center | Airport Terminal | Manhattan |
| Download Riley County business listings | ||
Riley County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Riley County Basemaps
Riley 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 Riley County Data Package
This page shows a preview of what's included in the Riley 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 Riley County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.