Blair County, Pennsylvania
Blair County is a county in Pennsylvania with an estimated population of 120,273 in 2023. 8 cities, towns and Census places in it are indexed here.
Largest places in Blair County
Altoona 42,788Hollidaysburg 5,506Tyrone 5,328Roaring Spring 2,315Martinsburg 1,830Bellwood 1,773Duncansville 1,216Williamsburg 1,198
About Blair County
Blair County is one of the counties of Pennsylvania. County governments in Pennsylvania handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.