County ProfileVA
Fairfax County
Population: 1,150,309 · 65 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
1,150,309
People
Median age
39.1
Housing
Total households
414,101
Income
Median household income
$153,637
Housing
Total housing units
430,047
Employment
Employment rate
66.5%
Education
Bachelor’s degree or higher
65%
Healthcare
Insured population
92.9%
County details
Local time 02:48:27(ET)| Name | Fairfax |
|---|---|
| Total ZIP codes | 65total |
| ZIP codes (by type) | 37 Standard12 PO Box16 Unique |
| Area code | 276, 571, 703, 757, 948 |
| Timezone | Eastern Time (ET) |
| Coordinates | 38.8295203, -77.2732524 |
| Land area | 391 sq miles(1,012.7 km²) |
Map of Fairfax county, Virginia with ZIP codes
Cities and Communities in Fairfax County
Compare the largest cities in Fairfax County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Centreville | 73,518 | $139,510 | 3ZIPs |
| Reston | 63,226 | $148,710 | 6ZIPs |
| Mc Lean | 59,157 | — | 6ZIPs |
| Annandale | 43,363 | $116,263 | 1ZIPs |
| Burke | 42,312 | $185,818 | 2ZIPs |
| Oakton | 36,732 | $160,663 | 1ZIPs |
| Springfield | 31,339 | $125,999 | 9ZIPs |
| Herndon | 24,655 | $148,000 | 5ZIPs |
| Chantilly | 24,301 | $157,124 | 3ZIPs |
| Fairfax | 24,146 | $132,348 | 9ZIPs |
| Rose Hill | 21,045 | $174,950 | 1ZIPs |
| Merrifield | 20,488 | $136,373 | 5ZIPs |
| Lorton | 20,072 | $138,685 | 2ZIPs |
| Vienna | 16,473 | $216,953 | 5ZIPs |
| Great Falls | 15,953 | $250,001 | 1ZIPs |
| Newington | 13,223 | $155,027 | 1ZIPs |
| Mount Vernon | 12,914 | $163,750 | 1ZIPs |
| Fairfax Station | 12,420 | $212,224 | 1ZIPs |
| Dunn Loring | 9,464 | $244,265 | 1ZIPs |
| Fort Belvoir | 7,637 | $104,205 | 1ZIPs |
| Clifton | 243 | $232,500 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Fairfax County
Review the most populated postal areas across Fairfax County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 22030 | Fairfax | $139,831 | 60,431 |
| 22003 | Annandale | $138,794 | 59,372 |
| 20171 | Herndon | $171,372 | 51,759 |
| 22015 | Burke | $172,563 | 43,941 |
| 20170 | Herndon | $159,466 | 42,756 |
| 20120 | Centreville | $152,563 | 42,697 |
| 22033 | Fairfax | $143,454 | 40,692 |
| 20152 | Chantilly | $197,156 | 37,013 |
| 22031 | Fairfax | $134,577 | 35,256 |
| 22079 | Lorton | $148,134 | 35,225 |
| 22153 | Springfield | $174,228 | 32,697 |
| 22101 | Mc Lean | $250,001 | 31,414 |
| 20191 | Reston | $151,185 | 29,948 |
| 22032 | Fairfax | $178,394 | 29,909 |
| 22152 | Springfield | $165,906 | 29,843 |
| 20121 | Centreville | $129,947 | 28,901 |
| 22150 | Springfield | $123,114 | 27,955 |
| 22182 | Vienna | $205,108 | 27,778 |
| 22102 | Mc Lean | $153,949 | 27,743 |
| 22180 | Vienna | $177,111 | 26,666 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS