Delaware County GIS Maps

Delaware 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.

Delaware County Population

Delaware County had 40,397 residents in 2020. That was 2.6% lower than in 2010. Delaware County added 3,320 people between 2000 and 2020, which points to steady long-term growth. Grove is the largest city in the county, but it accounts for only about 17% of the total population. The county is fairly spread out, with about 55 people per square mile. Some of the county's most populated postal areas include Grove, Jay and Afton.

Population Trend in Delaware County OK

Delaware County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.

Delaware County Zip Codes

Delaware County has 9 zip codes. Some of the county's most populated zip codes include Grove (74344), Jay (74346) and Afton (74331). Grove is the largest zip by population, with about 14,923 residents or 37% of the county total. Together, the three largest zips account for about 72% of all county residents based on 2020 population estimates.

Most Populated Zip Codes in Delaware County OK

Delaware County Zip Code populations and trends per most recent census data.

Delaware County Demographics

Delaware County has a median age of 47, which makes the county a little older than Oklahoma overall. About 19.9% of residents are under 18, while 25.3% 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 26.4% of the population, which points to a solid working-age base. About 19.2% of adults have a bachelor's degree or higher, above the statewide figure of 27.8%. 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 Delaware County OK

Delaware County School Districts

Delaware County is served by 7 public school districts with 6,611 students enrolled in 2024. The largest districts on the county map are Grove Public Schools, Jay Public Schools and Kansas Public Schools. Those three districts account for about 73% 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 Delaware County OK

Delaware County school district enrollment and trends per most recent NCES reporting data.

Delaware County Housing & Real Estate

Delaware County has a median home value of $164,900 and a median gross rent of $868. About 76% 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 $382,450 and homes spent about 70 days on the market.

Businesses in Delaware County, OK

Delaware County has 1,932 business listings across 448 categories. The largest categories in Delaware County business listings are Churches & Religious Organizations (67, 3.5%), Gas Stations (40, 2.1%), and Real Estate Agents (38, 2.0%). The full Delaware County business listings dataset includes names, categories, addresses and contact details where available. Delaware County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.

Top Business Categories in Delaware County, OK

Delaware County Business Listings

Delaware County business listings sourced from Overture Maps. Includes locations with a high level of confidence.

Delaware County Basemaps

Delaware 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.

Preview a Live Package Demo

See exactly what is included in a county data package. Inspect how files are organized, the interactive data explorer and how maps and analytics are laid out. The demo loads a real sample package from Oklahoma — explore the full structure before you buy.