Arlington County Population

1800–2026

248.18K

2026 projection

3.9% since 2020 (increase)

050K100K150K200K250K18001850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Arlington County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026248,175+4,2441.74%
2025243,931+4,2441.77%
2024239,687+5,3182.27%
2023234,369+8930.38%
2022233,476-90.00%
2021233,485-5,3402.24%
2020238,825+4330.18%
2019238,392+1,7300.73%
2018236,662+1,4690.62%
2017235,193+3,3881.46%

Showing 10 of 37 years.

Arlington County Demographics

35.5median age

Median age

Female35.8 yrs
Male35.3 yrs

Adults

193,653
28,123 seniors (65+) · 15% of adults165,530 other adults

Sex

Female 49.7% · 117,352Male 50.3% · 118,902

Population by age

MaleFemale85+ years, male: 1,24885+ years, female: 1,88880–84 years, male: 1,22580–84 years, female: 1,43075–79 years, male: 2,47475–79 years, female: 3,18670–74 years, male: 3,37670–74 years, female: 3,94465–69 years, male: 4,66865–69 years, female: 4,68460–64 years, male: 5,81360–64 years, female: 5,28455–59 years, male: 6,48855–59 years, female: 6,13050–54 years, male: 7,52650–54 years, female: 7,10845–49 years, male: 7,95245–49 years, female: 7,87440–44 years, male: 9,60440–44 years, female: 8,73535–39 years, male: 9,63935–39 years, female: 10,18130–34 years, male: 12,11630–34 years, female: 11,61525–29 years, male: 15,04325–29 years, female: 14,70920–24 years, male: 8,01020–24 years, female: 8,31315–19 years, male: 5,33315–19 years, female: 4,93910–14 years, male: 6,24210–14 years, female: 5,7965–9 years, male: 6,1455–9 years, female: 5,7310–4 years, male: 6,0000–4 years, female: 5,80585+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45K5K10K10K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 2,363 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Arlington County Income

$142,114median household income

Median household income

$142,114

Half of households earn more, half earn less

Median earnings

$100,809

Typical yearly pay for a worker 25 or older.

Poverty rate

7.4%

About 1 in 14 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Arlington County Marital Status

44% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married44%45%42%
Never married44%46%42%
Divorced8%6%10%
Widowed3%1%5%
Separated1%1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year