| ZIP Codes: | 13 ZIP Codes (8 Standard, 2 PO Box, 3 Unique) [See All] |
| Area Codes: | 571 / 703 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 11:55:26 PM |
| Population: | 153,467 [See All] |
| FIPS: | 51510 |
| CBSA: | Washington-Arlington-Alexandria, DC-VA-MD-WV |
| Land Area: | 15 sq mi |
| Water Area: | 0 sq mi |
| Coordinates: | 38.8225, -77.0802 |
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153,467 residents live across 13 ZIPs covering 15 sq mi, served by 1 distinct USPS-recognized cities.
Population moved from 141,334 to 153,467 from 2014 to 2024 — a +8.6% change. 5 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 22301 (Alexandria, $194,819 median) and poorest ZIP 22311 (Alexandria, $87,626) are 3.5 miles apart — a 2.2× income gap across local geography.
Median home values vary 2.0× across this county — from $508,200 in 22304 (Alexandria) to $1,027,900 in 22301 (Alexandria).
Density varies 2× across the county — from 8,319 people/sq mi in 22302 (Alexandria) to 12,596 in 22305 (Alexandria).
Most of the decade's growth concentrated around Alexandria — top growth ZIPs averaged +14.9% over the past ten years ( 22314 , 22301 and 22311 ).
Educational attainment ranges from 51.6% bachelor's+ in 22311 (Alexandria) to 85.6% in 22301 (Alexandria) — the breadth of educational profiles across the area.
Within Virginia, this is the #13 most populous of 134 counties and ranks #9 for median household income with the #33 fastest decade growth .
On the national stage, Alexandria City County is ranks #59 for income .
Hosts 3 single-entity Unique ZIPs: 22333Us Army Mat Com ; 22350Dept Of Defense ; and 22334Sun Trust Bank .
Weighted by population, the typical household earns about $123,233 across the county — reflecting what a typical resident sees, not a simple ZIP average.
66.8% of adults age 25+ hold a bachelor's degree or higher (78,103 of 116,967 reporting). The most-educated ZIPs cluster around Alexandria.
8 Standard delivery, 2 PO Box only, 3 single-entity Unique ZIPs serve this county.
3 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
3 ZIP codes in this county serve a single facility — typically theme parks, universities, large corporations, airports, or government complexes.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 22304 | Alexandria | Standard | 48,613 | $101,600 | 4.9 | 3.4% |
| 22314 | Alexandria | Standard | 36,612 | $148,451 | 4.0 | 20.6% |
| 22311 | Alexandria | Standard | 19,337 | $87,626 | 1.6 | 9.7% |
| 22302 | Alexandria | Standard | 18,026 | $123,539 | 2.2 | -1.1% |
| 22305 | Alexandria | Standard | 17,214 | $113,537 | 1.4 | 6.3% |
| 22301 | Alexandria | Standard | 13,665 | $194,819 | 1.4 | 14.5% |
| 22313 | Alexandria | PO Box | — | — | 0.0 | — |
| 22331 | Alexandria | Standard | — | — | 0.0 | — |
| 22332 | Alexandria | Standard | — | — | 0.0 | — |
| 22333 | Alexandria | Unique | — | — | 0.0 | — |
| 22320 | Alexandria | PO Box | — | — | 0.0 | — |
| 22350 | Alexandria | Unique | — | — | 0.0 | — |
| 22334 | Alexandria | Unique | — | — | 0.0 | — |