Alexandria County Demographics

A map of Alexandria County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	77,106	78,519	49.1%	49.2%
Black	32,969	31,314	21.0%	19.6%
Hispanic	28,788	29,372	18.3%	18.4%
Asian	9,768	11,205	6.2%	7.0%
Multiracial	7,329	7,737	4.7%	4.9%
Native American/Other	1,016	1,320	0.6%	0.8%

Alexandria County, Virginia has an estimated population of 156,976, a slight decrease from the 159,467 recorded in the 2020 Census. The population is 49.1% White, 21.0% Black, 18.3% Hispanic, 6.2% Asian, 4.7% Multiracial, and 0.6% Native American/Other. This demographic dot map shows the population of Alexandria County, with one dot drawn for each person counted by the Census, color-coded by race.

Alexandria is about as racially diverse as it was in the 2020 Census. It is considerably more diverse than Virginia overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Alexandria County, that probability was 67.8% in 2020 and 67.5% in the most recent ACS estimates.

Alexandria County is ranked the 13th most populous county in Virginia, out of 133 counties. Alexandria County was ranked the 12th most populous county in the 2020 Census.

Alexandria County's White Population

77,106 residents of Alexandria County, or 49.1% of the population, identify as White. The share of White residents in Alexandria County is lower than in Virginia overall, where 58.4% of the population is White. Alexandria County ranks 111th statewide in terms of White residents as a share of the population, out of 133 counties.

Since the 2020 Census, Alexandria County's White population has declined by an estimated 1.8%. White residents' share of Alexandria County's population has remained roughly unchanged at 49.1%.

Alexandria County is more White than neighboring District of Columbia County (36.5% White), and Fairfax County (46.8% White). Alexandria County is less White than neighboring Arlington County (58% White), Falls Church County (68% White), and Fairfax County (51.1% White).

Alexandria County's Black Population

32,969 residents of Alexandria County, or 21.0% of the population, identify as Black. The share of Black residents in Alexandria County is slightly higher than in Virginia overall, where 18.3% of the population is Black. Alexandria County ranks 49th statewide in terms of Black residents as a share of the population, out of 133 counties.

Since the 2020 Census, Alexandria County's Black population has grown by an estimated 5.3%. Black residents' share of Alexandria County's population has increased from 19.6% to 21.0%.

Alexandria County is more Black than neighboring Arlington County (9.3% Black), Falls Church County (3.5% Black), Fairfax County (9.4% Black), and Fairfax County (6.3% Black). Alexandria County is less Black than neighboring District of Columbia County (41.6% Black).

Alexandria County's Asian Population

9,768 residents of Alexandria County, or 6.2% of the population, identify as Asian. The share of Asian residents in Alexandria County is comparable to the share in Virginia overall, where 6.9% of the population is Asian. Alexandria County ranks 13th statewide in terms of Asian residents as a share of the population, out of 133 counties.

Since the 2020 Census, Alexandria County's Asian population has declined by an estimated 12.8%. Asian residents' share of Alexandria County's population has decreased from 7.0% to 6.2%.

Alexandria County is more Asian than neighboring District of Columbia County (4.3% Asian). Alexandria County is less Asian than neighboring Arlington County (10.5% Asian), Falls Church County (9.1% Asian), Fairfax County (19.9% Asian), and Fairfax County (18.4% Asian).

Alexandria County's Hispanic Population

28,788 residents of Alexandria County, or 18.3% of the population, identify as Hispanic. The share of Hispanic residents in Alexandria County is higher than in Virginia overall, where 11% of the population is Hispanic. Alexandria County ranks 6th statewide in terms of Hispanic residents as a share of the population, out of 133 counties.

Since the 2020 Census, Alexandria County's Hispanic population has declined by an estimated 2.0%. Hispanic residents' share of Alexandria County's population has remained roughly unchanged at 18.3%.

Alexandria County is more Hispanic than neighboring Arlington County (15.9% Hispanic), Falls Church County (10.8% Hispanic), District of Columbia County (11.9% Hispanic), and Fairfax County (17.6% Hispanic). Alexandria County is less Hispanic than neighboring Fairfax County (18.9% Hispanic).

Alexandria County's Native American/Other Population

1,016 residents of Alexandria County, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Alexandria County is comparable to the share in Virginia overall, where 0.8% of the population is Native American/Other. Alexandria County ranks 43rd statewide in terms of Native American/Other residents as a share of the population, out of 133 counties.

Since the 2020 Census, Alexandria County's Native American/Other population has declined by an estimated 23.0%. Native American/Other residents' share of Alexandria County's population has remained roughly unchanged at 0.6%.

Alexandria County is less Native American/Other than neighboring Arlington County (0.8% Native American/Other), Falls Church County (1.3% Native American/Other), District of Columbia County (0.8% Native American/Other), Fairfax County (0.9% Native American/Other), and Fairfax County (1.2% Native American/Other).

Alexandria County's Multiracial Population

7,329 residents of Alexandria County, or 4.7% of the population, identify as Multiracial. The share of Multiracial residents in Alexandria County is comparable to the share in Virginia overall, where 4.7% of the population is Multiracial. Alexandria County ranks 32nd statewide in terms of Multiracial residents as a share of the population, out of 133 counties.

Since the 2020 Census, Alexandria County's Multiracial population has declined by an estimated 5.3%. Multiracial residents' share of Alexandria County's population has remained roughly unchanged at 4.7%.

Alexandria County is more Multiracial than neighboring Fairfax County (4.1% Multiracial). Alexandria County is less Multiracial than neighboring Arlington County (5.5% Multiracial), Falls Church County (7.2% Multiracial), District of Columbia County (4.9% Multiracial), and Fairfax County (5.4% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.