District of Columbia County GIS Maps
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District of Columbia County, District of Columbia, has 672,079 residents and covers 61.1 square miles. The FIPS code for District of Columbia County is 11001. Washington is the county's largest population center. District of Columbia County also includes 57 zip codes, 1 public school district and 9 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.
District of Columbia County Trends
- Population
- 672,079—
- Median Home Value
- $724,600▴
- K-12 Enrollment
- 52,030▴
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.
District of Columbia 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.
District of Columbia County Population
District of Columbia County had 672,079 residents in 2020. Recent census data shows how the county has changed over time. Long-term census counts show how the county has changed across recent decades. Washington is the largest city in the county, with about 689,545 residents. Some of the county's most populated postal areas include Washington, Washington and Washington.
Population Trend in District of Columbia County DC
District of Columbia County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
District of Columbia County Zip Codes
District of Columbia County has 57 zip codes. Some of the county's most populated zip codes include Washington (20002), Washington (20011) and Washington (20019). The largest zip areas account for a meaningful share of the county population. Together, the three largest zips account for about 0% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in District of Columbia County DC
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 20002 | Washington | 69,422 | ▴ 32.6% |
| 20011 | Washington | 67,815 | ▴ 15.9% |
| 20019 | Washington | 59,601 | ▴ 9.6% |
| 20009 | Washington | 53,357 | ▴ 11.2% |
| 20020 | Washington | 51,616 | ▴ 3.5% |
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District of Columbia County Zip Code populations and trends per most recent census data.
District of Columbia County Demographics
District of Columbia County has a median age of 34.9, which is close to the District of Columbia average. About 18.7% of residents are under 18, while 12.7% 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 44.3% of the population, which points to a solid working-age base. About 63.6% of adults have a bachelor's degree or higher, above the statewide figure of 63.6%. The county has a more diverse population mix, with no single race or ethnicity accounting for all of the local story.
Key Demographics for District of Columbia County DC
Median Age
34.9
Under 18
18.7%
Age 65+
12.7%
Bachelor's+
63.6%
District of Columbia County School Districts
District of Columbia County is served by 1 public school district with 52,030 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 grown modestly since 2017 across the districts shown on the county map.
Largest School Districts by Enrollment in District of Columbia County DC
| District | Enrollment | Share | Trend |
|---|---|---|---|
| District of Columbia Public Schools | 52,030 | 100% | ▴ 1.4% |
| Download all school district data | |||
District of Columbia County school district enrollment and trends per most recent NCES reporting data.
District of Columbia County Housing & Real Estate
District of Columbia County has a median home value of $724,600 and a median gross rent of $1,900. About 41% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the District of Columbia median, while rents come in above the state average. In March 2026, the median listing price was $552,500 and homes spent about 45 days on the market.
District of Columbia County Housing Mix
District of Columbia County housing mix: owner, renter and vacant units.
District of Columbia County Housing Trends
District of Columbia County median home value and rent trend (last 5 years).
Businesses in District of Columbia County, DC
District of Columbia County has 33,800 business listings across 1,092 categories. The largest categories in District of Columbia County business listings are Community & Nonprofits (2,135, 6.3%), Landmark And Historical Building (993, 2.9%), and Corporate Office (698, 2.1%). The full District of Columbia County business listings dataset includes names, categories, addresses and contact details where available. District of Columbia County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in District of Columbia County, DC
| Category | Businesses | Share |
|---|---|---|
| Community & Nonprofits | 2,135 | 6.3% |
| Landmark And Historical Building | 993 | 2.9% |
| Corporate Office | 698 | 2.1% |
| Real Estate Agents | 604 | 1.8% |
| Churches & Religious Organizations | 597 | 1.8% |
| Professional Services | 592 | 1.8% |
| Public And Government Association | 486 | 1.4% |
| Legal Services | 397 | 1.2% |
| Restaurants | 387 | 1.1% |
| College University | 367 | 1.1% |
District of Columbia County Business Listings
| Business | Category | City |
|---|---|---|
| NRH Rehabilitation Network | Abuse And Addiction Treatment | Washington |
| Howard University Barnes and Noble Bookstore | Academic Bookstore | Washington |
| Twelve12 Apartments | Accommodation | Washington |
| Maria Elena Lopez | Accountant | Washington |
| Fletcher's Cove parkrun | Active Life | Washington |
| Transformational Acupuncture | Acupuncture | Washington |
| MedMark Treatment Centers District of Columbia | Addiction Rehabilitation Center | Washington |
| Congressional Coalition on Adoption Institute | Adoption Services | Washington |
| Byte Back | Adult Education | Washington |
| Crew Club | Adult Entertainment | Washington |
| Download District of Columbia County business listings | ||
District of Columbia County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
District of Columbia County Basemaps
District of Columbia 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 District of Columbia County Data Package
This page shows a preview of what's included in the District of Columbia 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 District of Columbia County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.