Fairfax city, Virginia
County seat: Fairfax · Population 26,772 (2025) · 6 sq mi
Fairfax city is the 70th most populous of Virginia's 133 counties, with 26,772 people (2025 estimate). Its county seat is Fairfax. It is part of the Northern Virginia Regional Commission (PD 8) region, one of the 21 Planning District Commissions of Virginia. The map shows its 1 city or town and the 1 neighboring counties.
Fairfax city facts
- County seat
- Fairfax
- Population (2025 estimate)
- 26,772 +10.9% since 2020
- Land area
- 6 sq mi 129th largest of 133
- Water area
- 0 sq mi
- Population density
- 4,290 per sq mi
- Established
- 1961
- Named after
- Thomas Fairfax American planter
- Largest city
- Fairfax 26,772
- Median household income
- $132,348
- Cities and towns
- 1
- ZIP codes
- 3
- Time zone
- Eastern
- FIPS code
- 51600
Cities and towns in Fairfax city
Fairfax city has 1 incorporated place. Populations count the people living inside Fairfax city; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Fairfax (county seat) | City | 26,772 |
ZIP codes in Fairfax city
3 ZIP codes reach into Fairfax city. ZIP codes ignore county lines, so some also cover a neighboring county.
- 22030 also Fairfax County
- 22031 also Fairfax County
- 22032 also Fairfax County
Population of Fairfax city, 2020–2025
Fairfax city grew by 2,626 people (+10.9%) between April 2020 and July 2025: 1,633 more births than deaths and a net gain of 970 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 24,174 |
| 2021 | 24,363 |
| 2022 | 24,657 |
| 2023 | 25,070 |
| 2024 | 26,038 |
| 2025 | 26,772 |
Neighboring counties
- Fairfax County southeast · 1,167,873 people
Printable Fairfax city map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (62 KB)
- PNG (2400 px) (50 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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