Alexandria city area

Alexandria city, Virginia covers 15.3 square miles: 14.9 square miles of land and 0.413 square miles of water. An estimated 160,662 people lived there in 2025.

Official Census measurements · GEOID 515102026 Gazetteer · retrieved September 27, 2026
Land area14.9 mi²
Water area0.413 mi²
Population (2025)160,662
People per mi²10,757

County outline

Generalized outline of Alexandria city, Virginia
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Alexandria city is located

Alexandria city highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 97.3% of Alexandria city’s measured area and water for 2.7%. Its combined area converts to 39.8 square kilometers or approximately 9,823 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land14.93538.6819,558.4
Water0.4131.07264.3
Total15.34839.7519,822.7

How Alexandria city compares

By original Census land area, Alexandria city ranks #112 of 133 in Virginia and #3196 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.048 times the Virginia county-equivalent median of 310 square miles. It accounts for 0% of the combined county land area in the state.

See the complete Virginia ranking · What counts as a county equivalent?

Population and density of Alexandria city

The Census Bureau estimates that 160,662 people lived in Alexandria city on July 1, 2025. That ranks #436 of 3,222 county equivalents nationally and #13 of 133 in Virginia. Since the April 1, 2020 estimates base of 159,470, the population has grown by 1,192 (+0.7%), compared with +2.9% for Virginia as a whole.

With 14.9 square miles of land, that is 10,757 people per square mile (4,153 per km²), placing Alexandria city #10 nationally for density and #1 in Virginia. The median county equivalent has 47 people per square mile; the Virginia median is 109. Put another way, there are about 0.059 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate159,147155,116154,880155,798159,367160,662
Change—−4,031−236+918+3,569+1,295

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Alexandria city

Every resident of Alexandria city lives within Alexandria city. The city and the county equivalent cover the same territory, 14.9 square miles of land in the 2026 place Gazetteer, so there are no separate towns or unincorporated areas to list.

Metropolitan area

Alexandria city is a central county of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area, in the Arlington-Alexandria-Reston, VA-WV metropolitan division. Its 23 county equivalents have 6,465,724 residents on 6,033.7 square miles of land; Alexandria city accounts for 0.2% of the land and 2.5% of the residents. By combined land it ranks #35 of 393 metropolitan areas, and #7 by population. It belongs to the Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area.

County equivalentPopulation 2025Land mi²
Fairfax County1,167,873391
Montgomery CountyMaryland1,074,582493.1
Prince George's CountyMaryland970,374482.6
District of ColumbiaDistrict of Columbia693,64561.1
Prince William County502,966335.3
Loudoun County449,749515.7
Frederick CountyMaryland302,883660.7
Arlington County243,93126
Charles CountyMaryland176,593457.8
Stafford County170,803268.5
Alexandria city160,66214.9
Spotsylvania County155,388401.9
Fauquier County76,503648
Jefferson CountyWest Virginia63,102209.3
Culpeper County57,666379.2
Manassas city44,3329.8
Warren County42,740214.6
Fredericksburg city30,39310.5
Fairfax city26,7726.2
Manassas Park city16,5603
Clarke County15,609176
Falls Church city15,1592
Rappahannock County7,439266.4

ZIP codes

8 ZIP Code Tabulation Areas have land in Alexandria city; 6 of them have most of their land inside the county, and the others mainly cover neighboring areas.

2220622301223022230422305223112231222314

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Alexandria city

Alexandria city shares a land border with 4 county equivalents, including 2 in District of Columbia and Maryland. Each of them has more land than Alexandria city. The largest neighbor is Prince George's County (482.6 mi²) and the smallest is Arlington County (26 mi²). Together with its neighbors, Alexandria city forms a block of 975.7 mi² of land, of which it holds 1.5%.

Map of Alexandria city and the 4 county equivalents that border it Fairfax County, Virginia: 391 mi² landArlington County, Virginia: 26 mi² landDistrict of Columbia, District of Columbia: 61.1 mi² landPrince George's County, Maryland: 482.6 mi² land
Alexandria city (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. Alexandria cityCompare
Prince George's CountyMaryland482.632.3× largerCompare
Fairfax County39126.2× largerCompare
District of ColumbiaDistrict of Columbia61.14.1× largerCompare
Arlington County261.7× largerCompare

How big is Alexandria city compared with U.S. states?

Alexandria city has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 69 times as much. Virginia’s county land could hold about 2,644 areas the size of Alexandria city.

Land area: Alexandria city and the closest-sized states
Alexandria city14.9 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 3.86 miles (6.2 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Alexandria city?

Alexandria city has more land than 26 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Alexandria city14.9 mi²
Virginia median310 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Alexandria city at #3,197 nationally by total area, 1 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 2.7%, compared with a national county-equivalent median of 1.2% — 1.5 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Alexandria city in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#3195Waynesboro city, Virginia15Compare
#3196Alexandria city, Virginia14.9This county
#3197Salem city, Virginia14.5Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 38.818815, -77.083227. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 38,682,329 m²; AWATER: 1,069,027 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Alexandria city?

Alexandria city, Virginia has 14.9 square miles (38.7 km²) of land and 0.413 square miles of water, for a total area of 15.3 square miles. It ranks #3196 of 3,222 U.S. county equivalents by land area.

Is Alexandria city the largest county in Virginia?

No. Alexandria city ranks #112 of 133 in Virginia by land area. The largest is Pittsylvania County, with 969 square miles of land.

What counties border Alexandria city?

Alexandria city shares a land border with Fairfax County, Arlington County, District of Columbia, District of Columbia, and Prince George's County, Maryland.

What is the population of Alexandria city?

The Census Bureau estimates Alexandria city had 160,662 residents on July 1, 2025, ranking #436 of 3,222 county equivalents. That is 10,757 people per square mile of land.

Is Alexandria city part of a metropolitan area?

Yes. It is a central county of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area, which has 23 county equivalents and 6,465,724 residents.

How many ZIP codes are in Alexandria city?

8 ZIP Code Tabulation Areas have land in Alexandria city, and 6 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Alexandria city compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 69.2 times as much land.

How many acres of land are in Alexandria city?

The land measurement converts to approximately 9,558 acres. Including water, total area is approximately 9,823 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

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