Blair County, Pennsylvania Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 28th-largest in Pennsylvania

The population of Blair County, Pennsylvania is 121,854 as of the 2023 American Community Survey, making it the 28th-largest county in Pennsylvania. The median household income is $60,594, the median home value is $156,700, and the median age is 42.9.

The population of Blair County has declined 5.3% since 2010 (127,049 → 120,269), a -0.39% annualized rate.

Blair County within Pennsylvania · Source: US Census TIGER/Line via us-atlas

121,854

Population

-0.39%

Annual growth

232

People / sq mi

$60,594

Median Income

$156,700

Median Home Value

Blair County covers 525 sq mi of land at 232.1 people per square mile.

About Blair County, PA

Blair County is distinguished by its share of foreign-born residents, 10.9% of the population. Blair County is a county in Pennsylvania with a population of 121,854. It ranks #28 among counties in Pennsylvania by population.

Household earnings are middling, with a median of $60,594 — below the US median of $78,538. About 8.5% of residents live below the federal poverty level, below the national 12.4%. Homes carry a median value of $156,700, with typical rent around $854.

24.1% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. About 5.9% of the workforce is home-based, below the national 14.0%, and the average commute runs about 21 minutes each way.

Blair County Population History (2010-2024)

The county of Blair County had a population of 127,049 in 2010 and 120,269 in 2024, a -5.3% growth over 14 years. The peak was 127,049 in 2010. Average annual growth rate: -0.39%.

Blair County population, 2010–2024 · Source: U.S. Census Bureau — decennial census & Population Estimates

120,269

Population (2024)

127,049

Population (2010)

127,049

Peak (2010)

-0.39%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	127,049	-	-	estimate
2011	126,990	-59	-0.05%	estimate
2012	126,569	-421	-0.33%	estimate
2013	125,869	-700	-0.55%	estimate
2014	125,309	-560	-0.44%	estimate
2015	124,637	-672	-0.54%	estimate
2016	123,779	-858	-0.69%	estimate
2017	123,173	-606	-0.49%	estimate
2018	122,567	-606	-0.49%	estimate
2019	121,942	-625	-0.51%	estimate
2020	122,664	+722	+0.59%	estimate
2021	122,160	-504	-0.41%	estimate
2022	120,796	-1,364	-1.12%	estimate
2023	120,494	-302	-0.25%	estimate
2024	120,269	-225	-0.19%	estimate

Race & Ethnicity

White	93.3%
Black or African American	1.8%
Asian	0.0%
Hispanic or Latino (any race)	0.5%
Two or More Races	0.0%

Age & Sex

42.9

Median Age

50.6%

Female

49.4%

Male

21.2%

Age 65+

Age Distribution

Under 5

5.0%

5–9

5.5%

10–14

6.2%

15–19

6.6%

20–24

5.2%

25–34

12.1%

35–44

11.8%

45–54

12.2%

55–59

6.5%

60–64

7.8%

65–74

12.3%

75–84

6.2%

85+

2.7%

Children (under 15): 16.7% · Seniors (65+): 21.2%

Income & Poverty

Median household income	$60,594$-15,487 vs state
Mean household income	$80,522
Per-capita income	$34,593
Poverty rate	8.5%+0.4% vs state
Unemployment rate	2.6%
Employment-to-population	56.4%

Top Industries by Employment

Professional & business services

27.2%

Manufacturing

10.1%

Education & health care

9.1%

Finance & real estate

7.9%

Retail trade

7.8%

Construction

6.7%

Arts, entertainment & food

5.4%

Public administration

4.2%

The largest employment sector in Blair County is professional & business services, accounting for 27.2% of workers.

How residents commute

0.6%

Drive alone

3.4%

Carpool

80.9%

Public transit

5.9%

Work from home

20.9 min

Avg commute

Housing

$156,700$-83,800 vs state

Median home value

$854

Median rent

72.4%

Homeownership rate

55,788

Total housing units

90.6%

Occupied

9.4%

Vacant

27.6%

Renter-occupied

Social & access

94.2%

With health insurance

89.0%

With broadband internet

10.9%

Foreign-born

8.7%

Veterans (18+)

15.9%

With a disability

96.9%

Speak language other than English at home

Education

93.2%

High School+

24.1%

Bachelor's+

Largest cities in Pennsylvania

Philadelphia (1,582,432)Pittsburgh (303,620)Allentown (125,320)Reading (94,836)Erie (94,156)Bethlehem (77,069)Scranton (76,074)Lancaster (57,683)Levittown (50,930)Harrisburg (50,092)All Pennsylvania cities →

Other counties in Pennsylvania

Philadelphia County (1,582,432)Allegheny County (1,240,476)Montgomery County (861,225)Bucks County (645,993)Delaware County (576,195)Lancaster County (555,151)Chester County (540,896)York County (459,312)Berks County (429,989)Lehigh County (375,408)All Pennsylvania counties →

Part of Pennsylvania

Pennsylvania demographic profile All Pennsylvania data →

Metro areas in Pennsylvania

Philadelphia (6,241,882)Pittsburgh (2,443,921)Allentown (866,764)Harrisburg (597,894)Scranton (567,887)Lancaster (555,151)York (459,312)Reading (429,989)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Blair County, Pennsylvania has a population of 121,854 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 28th-largest county in Pennsylvania. Population density is 232 people per square mile.

The population of Blair County has declined 5.3% since 2010 (127,049 → 120,269), a -0.39% annualized rate.

The median household income in Blair County, Pennsylvania is $60,594, with mean (average) household income of $80,522 and per-capita income of $34,593. 8.5% of residents live below the federal poverty level.

In Blair County, the largest racial and ethnic groups are White (93.3%), Black or African American (1.8%), Hispanic or Latino (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Blair County, Pennsylvania is 42.9 years. Residents are 50.6% female and 49.4% male.

The median home value in Blair County is $156,700 and median monthly rent is $854. 72.4% of occupied housing units are owner-occupied. The county has 55,788 total housing units, 9.4% of which are vacant.

The largest employment sector in Blair County, Pennsylvania is professional, scientific, and management services, employing 27.2% of workers. The unemployment rate is 2.6%.

Philadelphia is among the largest cities associated with Blair County, Pennsylvania, with a population of 1,582,432.