Sweetwater County GIS Maps
Sweetwater County, Wyoming, has 42,272 residents across 27,325 parcels and covers 10,427.0 square miles. The population declined 3.5% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Sweetwater County is 56037.
Rock Springs is the county's largest population center. Sweetwater County also includes 11 zip codes, 2 public school districts and 15 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 parcel data, population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers, Parcels and sample data. Paid packages add full layers, analytics and database files.
Sweetwater County Trends
- Population
- 42,272▾
- Median Home Value
- $242,900▴
- K-12 Enrollment
- 7,075▾
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.
Sweetwater 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.
Sweetwater County Parcels
Sweetwater County has 27,325 mapped parcels covering 6,711,102 acres. The median assessed value is $241,039. The median lot size is 0.21 acres. 2,977 parcels are 10 acres or larger. The records carry 14,559 distinct owner names. About 16% of parcels list an owner mailing address outside Wyoming. Assessed values and lot sizes are on nearly every parcel. Owner names reach 66.4%. Mailing addresses reach 66.3%. Browse the interactive Sweetwater County Parcel viewer here.
Sweetwater County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 27,325 | 100% |
| Owner name | 18,133 | 66.4% |
| Owner mailing address | 18,125 | 66.3% |
| Site address | 18,091 | 66.2% |
| Land use code | 0 | 0% |
| Land use description | 0 | 0% |
| Assessed value | 27,325 | 100% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 27,325 | 100% |
| Parcel boundary | 27,325 | 100% |
| Download all Sweetwater County parcels. | ||
Field coverage measured across all Sweetwater County parcel records.
Sweetwater County Population
Sweetwater County had 42,272 residents in 2020. That was 3.5% lower than in 2010. Sweetwater County added 4,659 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 4 people per square mile. Some of the county's most populated postal areas include Rock Springs, Green River and Farson.
Population Trend in Sweetwater County WY
Sweetwater County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Sweetwater County Zip Codes
Sweetwater County has 11 zip codes. Some of the county's most populated zip codes include Rock Springs (82901), Green River (82935) and Farson (82932). Rock Springs is the largest zip by population, with about 28,005 residents or 66% 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 Sweetwater County WY
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 82901 | Rock Springs | 28,005 | ▴ 0.1% |
| 82935 | Green River | 12,324 | ▾ -6.1% |
| 82932 | Farson | 717 | ▾ -14.2% |
| 82943 | Rock Springs | 303 | ▴ 0.7% |
| 82336 | Wamsutter | 243 | ▾ -51.2% |
| Download all zip code data | |||
Sweetwater County Zip Code populations and trends per most recent census data.
Sweetwater County Demographics
Sweetwater County has a median age of 37.4, which makes the county a little younger than Wyoming overall. About 25.3% of residents are under 18, while 14.1% 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 34.4% of the population, which points to a solid working-age base. About 20.4% of adults have a bachelor's degree or higher, above the statewide figure of 29.9%. 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 Sweetwater County WY
Median Age
37.4
Under 18
25.3%
Age 65+
14.1%
Bachelor's+
20.4%
Sweetwater County School Districts
Sweetwater County is served by 2 public school districts with 7,075 students enrolled in 2024. Several larger districts account for a substantial share of students across the county map area. Those three districts account for about 100% 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 Sweetwater County WY
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Sweetwater County School District 1 | 4,789 | 67.7% | ▾ -1.1% |
| Sweetwater County School District 2 | 2,286 | 32.3% | ▾ -1.8% |
| Download all school district data | |||
Sweetwater County school district enrollment and trends per most recent NCES reporting data.
Sweetwater County Housing & Real Estate
Sweetwater County has a median home value of $242,900 and a median gross rent of $913. 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 Wyoming median, while rents come in below the state average. In March 2026, the median listing price was $337,250 and homes spent about 53 days on the market.
Sweetwater County Housing Mix
Sweetwater County housing mix: owner, renter and vacant units.
Sweetwater County Housing Trends
Sweetwater County median home value and rent trend (last 5 years).
Businesses in Sweetwater County, WY
Sweetwater County has 1,991 business listings across 462 categories. The largest categories in Sweetwater County business listings are Gas Stations (48, 2.4%), Churches & Religious Organizations (43, 2.2%), and Convenience Stores (31, 1.6%). The full Sweetwater County business listings dataset includes names, categories, addresses and contact details where available. Sweetwater County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Sweetwater County, WY
| Category | Businesses | Share |
|---|---|---|
| Gas Stations | 48 | 2.4% |
| Churches & Religious Organizations | 43 | 2.2% |
| Convenience Stores | 31 | 1.6% |
| Landmark And Historical Building | 31 | 1.6% |
| Auto Repair | 29 | 1.5% |
| Hotels | 27 | 1.4% |
| Bars & Nightlife | 26 | 1.3% |
| Structure And Geography | 24 | 1.2% |
| Insurance Agencies | 24 | 1.2% |
| Fast Food | 21 | 1.1% |
Sweetwater County Business Listings
| Business | Category | City |
|---|---|---|
| Rising Ridge Recovery | Abuse And Addiction Treatment | Wellsville |
| Eyden Inc | Accountant | Rock Springs |
| The Continental Divide | Active Life | |
| Bare Back Saloon | Adult Entertainment | Rock Springs |
| YourStreet | Advertising Agency | Rock Springs |
| Southwest Wyoming Regional Airport | Airport | Rock Springs |
| ABC Mental Health Substance Abuse Services | Alcohol And Drug Treatment Centers | Rock Springs |
| Castle Rock Ambulance Services | Ambulance And Ems Services | Green River |
| Applebee's | American Restaurants | Rock Springs |
| Steven Croft, MD | Anesthesiologist | Rock Springs |
| Download Sweetwater County business listings | ||
Sweetwater County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Sweetwater County Basemaps
Sweetwater 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 Sweetwater County Data Package
This page shows a preview of what's included in the Sweetwater 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 parcels, 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 Sweetwater County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.