Dewey County GIS Maps
Dewey County, Oklahoma, has 4,484 residents and covers 999.5 square miles. The population declined 6.8% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Dewey County is 40043.
Seiling is the county's largest population center. Dewey County also includes 7 zip codes, 6 public school districts and 12 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.
Dewey County Trends
- Population
- 4,484▾
- Median Home Value
- $118,200▴
- K-12 Enrollment
- 1,810▴
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.
Dewey 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.
Dewey County Population
Dewey County had 4,484 residents in 2020. That was 6.8% lower than in 2010. Dewey County had 259 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 4 people per square mile. Some of the county's most populated postal areas include Vici, Seiling and Canton.
Population Trend in Dewey County OK
Dewey County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Dewey County Zip Codes
Dewey County has 7 zip codes. Some of the county's most populated zip codes include Vici (73859), Seiling (73663) and Canton (73724). Vici is the largest zip by population, with about 1,369 residents or 31% of the county total. Together, the three largest zips account for about 81% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Dewey County OK
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 73859 | Vici | 1,369 | ▾ -6.2% |
| 73663 | Seiling | 1,282 | ▾ -3.8% |
| 73724 | Canton | 995 | ▾ -16.4% |
| 73667 | Taloga | 451 | ▾ -12.8% |
| 73835 | Camargo | 319 | ▴ 3.2% |
| Download all zip code data | |||
Dewey County Zip Code populations and trends per most recent census data.
Dewey County Demographics
Dewey County has a median age of 38, which makes the county a little older than Oklahoma overall. About 27.5% 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 Under 18 at about 27.5% of the population, which suggests the county has a notable share of children and family households. About 19.8% of adults have a bachelor's degree or higher, above the statewide figure of 27.8%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Dewey County OK
Median Age
38
Under 18
27.5%
Age 65+
19%
Bachelor's+
19.8%
Dewey County School Districts
Dewey County is served by 6 public school districts with 1,810 students enrolled in 2024. The largest districts on the county map are Thomas-Fay-Custer Unified Schools, Seiling Public Schools and Canton Public Schools. Those three districts account for about 67% 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 Dewey County OK
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Thomas-Fay-Custer Unified Schools | 459 | 25.4% | ▴ 0.9% |
| Seiling Public Schools | 435 | 24% | ▴ 1.4% |
| Canton Public Schools | 318 | 17.6% | ▴ 1.9% |
| Vici Public Schools | 263 | 14.5% | ▾ -9.6% |
| Leedey Public Schools | 209 | 11.5% | ▾ -2.3% |
| Download all school district data | |||
Dewey County school district enrollment and trends per most recent NCES reporting data.
Dewey County Housing & Real Estate
Dewey County has a median home value of $118,200 and a median gross rent of $900. About 75% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Oklahoma median, while rents come in below the state average. In March 2026, the median listing price was $125,000 and homes spent about 130 days on the market.
Dewey County Housing Mix
Dewey County housing mix: owner, renter and vacant units.
Dewey County Housing Trends
Dewey County median home value and rent trend (last 5 years).
Businesses in Dewey County, OK
Dewey County has 226 business listings across 113 categories. The largest categories in Dewey County business listings are Churches & Religious Organizations (14, 6.2%), Convenience Stores (10, 4.4%), and Gas Stations (8, 3.5%). The full Dewey County business listings dataset includes names, categories, addresses and contact details where available. Dewey County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Dewey County, OK
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 14 | 6.2% |
| Convenience Stores | 10 | 4.4% |
| Gas Stations | 8 | 3.5% |
| Post Offices | 7 | 3.1% |
| Insurance Agencies | 6 | 2.7% |
| Grocery Stores | 5 | 2.2% |
| Flowers & Gifts | 5 | 2.2% |
| Banks & Credit Unions | 5 | 2.2% |
| Elementary School | 5 | 2.2% |
| Gyms & Fitness | 4 | 1.8% |
Dewey County Business Listings
| Business | Category | City |
|---|---|---|
| Silverwood Apartments | Accommodation | Seiling |
| Legend Waterfowl, Whitetails, and Rio's | Active Life | Taloga |
| Everett's Welding & Repair | Agricultural Service | Vici |
| Vici Municipal Airport | Airport | Vici |
| Vici Restaurant | American Restaurants | Vici |
| LibertyX Bitcoin ATM | ATMs | Leedey |
| Sander Auction & Real Estate | Auction House | Seiling |
| Dang a Dent | Auto Body Shop | Seiling |
| Ball insurance | Auto Insurance | Vici |
| Seiling Auto Supply | Automotive Parts And Accessories | Seiling |
| Download Dewey County business listings | ||
Dewey County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Dewey County Basemaps
Dewey 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 Dewey County Data Package
This page shows a preview of what's included in the Dewey 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 Dewey County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.