Allegany County Population

1810–2026

46,778

2026 projection

0.8% since 2020 (increase)

010K20K30K40K50K60K1850190019502000

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 Allegany County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202646,778-220.05%
202546,800-220.05%
202446,822+1280.27%
202346,694+480.10%
202246,646-1070.23%
202146,753+3680.79%
202046,385+4701.02%
201945,915-3710.80%
201846,286-3830.82%
201746,669-3940.84%

Showing 10 of 36 years.

Allegany County Demographics

38.7median age

Median age

Female39.3 yrs
Male38 yrs

Adults

37,917
9,456 seniors (65+) · 25% of adults28,461 other adults

Sex

Female 49.1% · 23,141Male 50.9% · 24,018

Population by age

MaleFemale85+ years, male: 42785+ years, female: 80180–84 years, male: 54980–84 years, female: 48675–79 years, male: 80775–79 years, female: 80370–74 years, male: 1,39570–74 years, female: 1,35365–69 years, male: 1,45065–69 years, female: 1,38560–64 years, male: 1,79660–64 years, female: 1,55855–59 years, male: 1,35855–59 years, female: 1,50650–54 years, male: 1,26050–54 years, female: 1,25745–49 years, male: 1,17745–49 years, female: 1,18040–44 years, male: 1,34140–44 years, female: 1,06535–39 years, male: 1,05335–39 years, female: 1,32230–34 years, male: 1,15330–34 years, female: 1,09925–29 years, male: 1,10225–29 years, female: 1,03920–24 years, male: 2,52620–24 years, female: 2,23415–19 years, male: 2,77315–19 years, female: 2,34110–14 years, male: 1,31610–14 years, female: 1,4265–9 years, male: 1,3875–9 years, female: 1,0920–4 years, male: 1,1480–4 years, female: 1,19485+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

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 472 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

Allegany County Income

$62,869median household income

Median household income

$62,869

Half of households earn more, half earn less

Median earnings

$44,179

Typical yearly pay for a worker 25 or older.

Poverty rate

16.2%

About 1 in 6 residents

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

Allegany County Marital Status

46% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married46%46%46%
Never married36%38%33%
Divorced11%11%10%
Widowed6%4%9%
Separated2%2%2%

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