Codington County GIS Maps
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Codington County, South Dakota, has 28,325 residents and covers 687.6 square miles. The population grew 4% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Codington County is 46029.
Watertown is the county's largest population center. Codington County also includes 6 zip codes, 6 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.
Codington County Trends
- Population
- 28,325▴
- Median Home Value
- $218,000▴
- K-12 Enrollment
- 5,875▾
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.
Codington 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.
Codington County Population
Codington County had 28,325 residents in 2020. That was 4% higher than in 2010. Codington County added 2,428 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 41 people per square mile. Some of the county's most populated postal areas include Watertown, Florence and Henry.
Population Trend in Codington County SD
Codington County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Codington County Zip Codes
Codington County has 6 zip codes. Some of the county's most populated zip codes include Watertown (57201), Florence (57235) and Henry (57243). Watertown is the largest zip by population, with about 26,091 residents or 92% of the county total. Together, the three largest zips account for about 97% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Codington County SD
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 57201 | Watertown | 26,091 | ▴ 4.4% |
| 57235 | Florence | 830 | ▾ -1.7% |
| 57243 | Henry | 589 | ▾ -2.5% |
| 57263 | South Shore | 434 | ▾ -3.6% |
| 57272 | Wallace | 205 | ▴ 18.5% |
| Download all zip code data | |||
Codington County Zip Code populations and trends per most recent census data.
Codington County Demographics
Codington County has a median age of 39.9, which makes the county a little older than South Dakota overall. About 23.4% of residents are under 18, while 19% 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 30% of the population, which points to a solid working-age base. About 20.9% 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 Codington County SD
Median Age
39.9
Under 18
23.4%
Age 65+
19%
Bachelor's+
20.9%
Codington County School Districts
Codington County is served by 6 public school districts with 5,875 students enrolled in 2024. The largest districts on the county map are Watertown 14-4, Hamlin 28-3 and Webster 18-5. Those three districts account for about 86% 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 Codington County SD
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Watertown School District 14-4 | 3,606 | 61.4% | ▾ -2.3% |
| Hamlin School District 28-3 | 896 | 15.3% | ▴ 1.7% |
| Webster School District 18-5 | 546 | 9.3% | ▾ -0.4% |
| Florence School District 14-1 | 352 | 6% | ▴ 6% |
| Waverly School District 14-5 | 283 | 4.8% | ▴ 7.6% |
| Download all school district data | |||
Codington County school district enrollment and trends per most recent NCES reporting data.
Codington County Housing & Real Estate
Codington County has a median home value of $218,000 and a median gross rent of $901. About 67% 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 below the state average. In March 2026, the median listing price was $341,200 and homes spent about 71 days on the market.
Codington County Housing Mix
Codington County housing mix: owner, renter and vacant units.
Codington County Housing Trends
Codington County median home value and rent trend (last 5 years).
Businesses in Codington County, SD
Codington County has 1,654 business listings across 447 categories. The largest categories in Codington County business listings are Auto Repair (38, 2.3%), Churches & Religious Organizations (36, 2.2%), and Contractors (27, 1.6%). The full Codington County business listings dataset includes names, categories, addresses and contact details where available. Codington County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Codington County, SD
| Category | Businesses | Share |
|---|---|---|
| Auto Repair | 38 | 2.3% |
| Churches & Religious Organizations | 36 | 2.2% |
| Contractors | 27 | 1.6% |
| Insurance Agencies | 24 | 1.5% |
| Pizza Restaurants | 21 | 1.3% |
| Gas Stations | 21 | 1.3% |
| Beauty Salons | 20 | 1.2% |
| Financial Service | 20 | 1.2% |
| Landmark And Historical Building | 20 | 1.2% |
| Hotels | 19 | 1.1% |
Codington County Business Listings
| Business | Category | City |
|---|---|---|
| Three Oaks | Accommodation | Watertown |
| Ledgers | Accountant | Watertown |
| Maas Ice Arena | Active Life | Watertown |
| Deutsch Chiropractic Clinic | Acupuncture | Watertown |
| Hanson Marketing | Advertising Agency | Watertown |
| Physicians Vein Clinics - Watertown | Aesthetician | Watertown |
| Agwrx Cooperative | Agricultural Cooperatives | Watertown |
| Badlands Ranch & Rodeo Equipment | Agricultural Service | Watertown |
| CHS Watertown | Agriculture | Watertown |
| Great Lakes Airlines | Airline | Watertown |
| Download Codington County business listings | ||
Codington County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Codington County Basemaps
Codington 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 Codington County Data Package
This page shows a preview of what's included in the Codington 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 Codington County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.