Walworth County GIS Maps
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Walworth County, South Dakota, has 5,315 residents and covers 708.6 square miles. The population declined 2.3% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Walworth County is 46129.
Mobridge is the county's largest population center. Walworth County also includes 4 zip codes, 4 public school districts and 21 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.
Walworth County Trends
- Population
- 5,315▾
- Median Home Value
- $130,000▴
- K-12 Enrollment
- 986▾
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.
Walworth 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.
Walworth County Population
Walworth County had 5,315 residents in 2020. That was 2.3% lower than in 2010. Walworth County had 659 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 8 people per square mile. Some of the county's most populated postal areas include Selby, Glenham and Java.
Population Trend in Walworth County SD
Walworth County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Walworth County Zip Codes
Walworth County has 4 zip codes. Some of the county's most populated zip codes include Selby (57472), Glenham (57631) and Java (57452). Selby is the largest zip by population, with about 914 residents or 17% of the county total. Together, the three largest zips account for about 29% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Walworth County SD
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 57472 | Selby | 914 | ▾ -4.1% |
| 57631 | Glenham | 362 | ▴ 0.3% |
| 57452 | Java | 285 | ▴ 2.5% |
| 57420 | 57420 | 111 | ▴ 48% |
| Download all zip code data | |||
Walworth County Zip Code populations and trends per most recent census data.
Walworth County Demographics
Walworth County has a median age of 41.6, which makes the county a little older than South Dakota overall. About 23.5% of residents are under 18, while 23.2% 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 29.6% of the population, which points to a solid working-age base. About 31.1% of adults have a bachelor's degree or higher, above the statewide figure of 31.1%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Walworth County SD
Median Age
41.6
Under 18
23.5%
Age 65+
23.2%
Bachelor's+
31.1%
Walworth County School Districts
Walworth County is served by 4 public school districts with 986 students enrolled in 2024. The largest districts on the county map are Mobridge-Pollock 62-6, Selby 62-5 and Hoven 53-2. Those three districts account for about 91% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.
Largest School Districts by Enrollment in Walworth County SD
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Mobridge-Pollock School District 62-6 | 596 | 60.4% | ▴ 0.8% |
| Selby School District 62-5 | 188 | 19.1% | ▴ 2.7% |
| Hoven School District 53-2 | 112 | 11.4% | — 0% |
| Bowdle School District 22-1 | 90 | 9.1% | ▾ -17.4% |
| Download all school district data | |||
Walworth County school district enrollment and trends per most recent NCES reporting data.
Walworth County Housing & Real Estate
Walworth County has a median home value of $130,000 and a median gross rent of $962. About 74% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the South Dakota median, while rents come in above the state average. In March 2026, the median listing price was $145,000 and homes spent about 94 days on the market.
Walworth County Housing Mix
Walworth County housing mix: owner, renter and vacant units.
Walworth County Housing Trends
Walworth County median home value and rent trend (last 5 years).
Businesses in Walworth County, SD
Walworth County has 357 business listings across 184 categories. The largest categories in Walworth County business listings are Churches & Religious Organizations (15, 4.2%), Gas Stations (13, 3.6%), and Insurance Agencies (8, 2.2%). The full Walworth County business listings dataset includes names, categories, addresses and contact details where available. Walworth County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Walworth County, SD
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 15 | 4.2% |
| Gas Stations | 13 | 3.6% |
| Insurance Agencies | 8 | 2.2% |
| Lodge | 8 | 2.2% |
| Bars & Nightlife | 8 | 2.2% |
| Car Dealerships | 7 | 2.0% |
| Hotels | 7 | 2.0% |
| Convenience Stores | 5 | 1.4% |
| Auto Repair | 5 | 1.4% |
| Building Supply Store | 5 | 1.4% |
Walworth County Business Listings
| Business | Category | City |
|---|---|---|
| River Rest Lodge | Accommodation | Mobridge |
| Cahill Bauer and Associates | Accountant | Mobridge |
| Mobridge Ice Fishing Tournament | Active Life | Mobridge |
| Hoffman Harvesting Inc. | Agricultural Service | Bowdle |
| Agtegra Cooperative Java | Agriculture Association | Java |
| Mobridge Municipal Airport | Airport | Mobridge |
| Great Plains Family Restaurant | American Restaurants | Mobridge |
| Bridge City Corn Maze | Arts And Entertainment | Mobridge |
| Mobridge Livestock Exchange | Auction House | Mobridge |
| Dents 2 Darkness | Auto Body Shop | Mobridge |
| Download Walworth County business listings | ||
Walworth County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Walworth County Basemaps
Walworth 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 Walworth County Data Package
This page shows a preview of what's included in the Walworth 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 Walworth County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.