Blair County Demographics

A map of Blair County's Population by Race

Blair County, Pennsylvania has an estimated population of 121,277, a slight decrease from the 122,822 recorded in the 2020 Census. The population is 91.6% White, 4.0% Multiracial, 1.9% Black, 1.6% Hispanic, 0.7% Asian, and 0.2% Native American/Other. This demographic dot map shows the population of Blair County, with one dot drawn for each person counted by the Census, color-coded by race.

Blair has become slightly more racially diverse since the 2020 Census. It is considerably less diverse than Pennsylvania overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Blair County, that probability was 15.1% in 2020 and 15.9% in the most recent ACS estimates.

Blair County is ranked the 28th most populous county in Pennsylvania, out of 67 counties. Blair County was ranked the 28th most populous county in the 2020 Census.

Blair County's White Population

111,091 residents of Blair County, or 91.6% of the population, identify as White. The share of White residents in Blair County is significantly higher than in Pennsylvania overall, where 73% of the population is White. Blair County ranks 23rd statewide in terms of White residents as a share of the population, out of 67 counties.

Since the 2020 Census, Blair County's White population has declined by an estimated 1.7%. White residents' share of Blair County's population has remained roughly unchanged at 91.6%.

Blair County is more White than neighboring Cambria County (90.2% White), and Huntingdon County (89.3% White). Blair County is less White than neighboring Bedford County (95.4% White), Clearfield County (92% White), and Fulton County (93.2% White).

Blair County's Black Population

2,293 residents of Blair County, or 1.9% of the population, identify as Black. The share of Black residents in Blair County is lower than in Pennsylvania overall, where 10.3% of the population is Black. Blair County ranks 40th statewide in terms of Black residents as a share of the population, out of 67 counties.

Since the 2020 Census, Blair County's Black population has declined by an estimated 6.9%. Black residents' share of Blair County's population has remained roughly unchanged at 1.9%.

Blair County is more Black than neighboring Bedford County (0.7% Black), and Fulton County (1.3% Black). Blair County is less Black than neighboring Cambria County (2.8% Black), and Huntingdon County (4.5% Black).

Blair County's Asian Population

849 residents of Blair County, or 0.7% of the population, identify as Asian. The share of Asian residents in Blair County is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. Blair County ranks 34th statewide in terms of Asian residents as a share of the population, out of 67 counties.

Since the 2020 Census, Blair County's Asian population has declined by an estimated 2.2%. Asian residents' share of Blair County's population has remained roughly unchanged at 0.7%.

Blair County is more Asian than neighboring Cambria County (0.5% Asian), Huntingdon County (0.5% Asian), Bedford County (0.5% Asian), Clearfield County (0.6% Asian), and Fulton County (0.2% Asian).

Blair County's Hispanic Population

1,925 residents of Blair County, or 1.6% of the population, identify as Hispanic. The share of Hispanic residents in Blair County is lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. Blair County ranks 58th statewide in terms of Hispanic residents as a share of the population, out of 67 counties.

Since the 2020 Census, Blair County's Hispanic population has grown by an estimated 12.7%. Hispanic residents' share of Blair County's population has remained roughly unchanged at 1.6%.

Blair County is more Hispanic than neighboring Bedford County (1.4% Hispanic), and Fulton County (1.3% Hispanic). Blair County is less Hispanic than neighboring Cambria County (2.1% Hispanic), Huntingdon County (2.1% Hispanic), and Clearfield County (3% Hispanic).

Blair County's Native American/Other Population

245 residents of Blair County, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Blair County is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. Blair County ranks 39th statewide in terms of Native American/Other residents as a share of the population, out of 67 counties.

Since the 2020 Census, Blair County's Native American/Other population has declined by an estimated 52.2%. Native American/Other residents' share of Blair County's population has remained roughly unchanged at 0.2%.

Blair County is less Native American/Other than neighboring Fulton County (1.2% Native American/Other).

Blair County's Multiracial Population

4,874 residents of Blair County, or 4.0% of the population, identify as Multiracial. The share of Multiracial residents in Blair County is comparable to the share in Pennsylvania overall, where 3.6% of the population is Multiracial. Blair County ranks 28th statewide in terms of Multiracial residents as a share of the population, out of 67 counties.

Since the 2020 Census, Blair County's Multiracial population has grown by an estimated 14.6%. Multiracial residents' share of Blair County's population has increased from 3.5% to 4.0%.

Blair County is more Multiracial than neighboring Huntingdon County (3.4% Multiracial), Bedford County (1.9% Multiracial), Clearfield County (2.3% Multiracial), and Fulton County (2.8% Multiracial). Blair County is less Multiracial than neighboring Cambria County (4.1% 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.