Armstrong County Population

1800–2026

63,641

2026 projection

2.8% since 2020 (decrease)

020K40K60K80K100K18001850190019502000

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 Armstrong County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202663,641-570.09%
202563,698-570.09%
202463,755-4020.63%
202364,157-5670.88%
202264,724-5590.86%
202165,283-2130.33%
202065,496+7971.23%
201964,699-7121.09%
201865,411-6310.96%
201766,042-4220.63%

Showing 10 of 37 years.

Armstrong County Demographics

47.2median age

Median age

Female47.8 yrs
Male46.6 yrs

Adults

52,395
15,521 seniors (65+) · 30% of adults36,874 other adults

Sex

Female 49.9% · 32,231Male 50.1% · 32,391

Population by age

MaleFemale85+ years, male: 68685+ years, female: 1,35980–84 years, male: 92580–84 years, female: 1,01775–79 years, male: 1,10375–79 years, female: 1,30870–74 years, male: 2,14570–74 years, female: 2,03665–69 years, male: 2,44365–69 years, female: 2,49960–64 years, male: 2,86060–64 years, female: 2,72655–59 years, male: 2,31055–59 years, female: 2,27950–54 years, male: 2,25550–54 years, female: 2,13245–49 years, male: 1,94945–49 years, female: 1,87640–44 years, male: 1,77640–44 years, female: 1,97235–39 years, male: 1,85135–39 years, female: 1,66730–34 years, male: 1,82130–34 years, female: 1,69625–29 years, male: 1,84725–29 years, female: 1,66720–24 years, male: 1,57620–24 years, female: 1,49115–19 years, male: 1,82415–19 years, female: 1,63310–14 years, male: 1,78610–14 years, female: 1,9745–9 years, male: 1,8175–9 years, female: 1,5280–4 years, male: 1,4170–4 years, female: 1,37185+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 646 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

Armstrong County Income

$65,008median household income

Median household income

$65,008

Half of households earn more, half earn less

Median earnings

$46,628

Typical yearly pay for a worker 25 or older.

Poverty rate

11.8%

About 1 in 8 residents

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

Armstrong County Marital Status

56% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married56%56%55%
Never married25%28%21%
Divorced10%10%10%
Widowed7%3%11%
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