|Blair County, Pennsylvania|
Blair County Courthouse, Hollidaysburg
Location in the U.S. state of Pennsylvania
Pennsylvania's location in the U.S.
|Founded||February 26, 1846|
|• Total||527 sq mi (1,365 km2)|
|• Land||526 sq mi (1,362 km2)|
|• Water||1.3 sq mi (3 km2), 0.2%|
|• ( 2017)||123,457|
|• Density||239/sq mi (92/km2)|
|Time zone||Eastern: UTC−5/ −4|
|Designated||April 13, 1982 |
Blair County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 127,089.  Its county seat is Hollidaysburg.  The county was created on February 26, 1846, from parts of Huntingdon and Bedford Counties.
- 1 Geography
- 2 Demographics
- 3 Law and government
- 4 Education
- 5 Recreation
- 6 Communities
- 7 See also
- 8 References
- 9 External links
- Centre County (north)
- Huntingdon County (east)
- Bedford County (south)
- Cambria County (west)
- Clearfield County (northwest)
- I-99 / US 220
- US 22
US 220 Bus.
- PA 36
- PA 164
- PA 350
- PA 453
- PA 550
- PA 764
- PA 865
- PA 866
- PA 867
PA 867 Truck
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2017 
As of the census  of 2000, there were 127,089 people and 52,159 households within the county. The population density was 246 people per square mile (95/km²). There were 55,061 housing units at an average density of 105 per square mile (40/km²). The racial makeup of the county was 96.18% White, 1.68% Black or African American, 0.11% Native American, 0.56% Asian, 0.02% Pacific Islander, 0.23% from other races, and 1.22% from two or more races. 0.97% of the population were Hispanic or Latino of any race. 40.0% were of German, 12.2% Irish, 10.7% Italian, 9.9% American and 6.0% English ancestry.
There were 52,159 households out of which 28.4% had children under the age of 18 living with them, 52.60% were married couples living together, 11.20% had a female householder with no husband present, and 32.30% were non-families. 27.80% of all households were made up of individuals and 13.30% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.96.
In the county, the population was spread out with 21.1% under the age of 18, 3.5% from 18 to 19, 5.9% from 20 to 24, 11.1% from 25 to 34, 19.3% from 35 to 49, 21.4% from 50 to 64, and 17.7% who were 65 years of age or older. The median age was 40 years. The population was 48.55% male, and 51.45% female.
- Bruce Erb, Chair, Republican
- Terry Tomassetti, Vice-chair, Republican
- Ted Beam, Secretary, Democrat
- Clerk of Courts and Prothonotary, Carol Newman, Republican
- Controller, A.C. Stickel, Republican
- Coroner, Patricia Ross, Republican
- District Attorney, Richard Consiglio, Republican
- Register of Wills and Recorder of Deeds, Mary Ann Bennis, Republican
- Sheriff, James Ott, Republican
- Treasurer, James Carothers, Republican
- John McGinnis, Republican, Pennsylvania's 79th Representative District
- Judy Ward, Republican, Pennsylvania's 80th Representative District
As of November 2014, there are 84,077 registered voters in Blair County. 
- Democratic: 27,875 (33.15%)
- Republican: 45,573 (54.20%)
- Libertarian: 473 (0.56%)
- No Party Affiliation: 4,820 (5.73%)
- Other: 5,336 (6.35%)
- South Hills School of Business and Technology
- YTI Career Institute
- Pennsylvania Highlands Community College
- Altoona Area School District
- Bellwood-Antis School District
- Claysburg-Kimmel School District (also in Bedford County)
- Hollidaysburg Area School District
- Penn Cambria School District (also in Cambria County)
- Spring Cove School District
- Tyrone Area School District (also in Centre and Huntingdon Counties)
- Williamsburg Community School District
- Agora Cyber Charter School
- Central Pennsylvania Digital Learning Foundation Charter School (K-12). Altoona.
- There are 17 public cyber charter schools in Pennsylvania that are available statewide for free, to children K-12. See: Education in Pennsylvania. 
Data taken from Pennsylvania EdNA - PDE database of public private schools 2012
Blair County hosts a system of eight libraries that can be accessed with one library card. Resource sharing exists between the eight libraries. Books from any of the eight system libraries can be placed on hold and delivered to a patron's home library and then returned to any of the eight libraries in the system.
- Altoona Area Public Library - Altoona
- Bellwood Antis Public Library - Bellwood
- Blair County Library System - Altoona
- Claysburg Area Public Library - Claysburg
- Hollidaysburg Area Public Library - Hollidaysburg
- Martinsburg Community Library - Martinsburg
- Roaring Spring Community Library - Roaring Spring
- Tyrone-Snyder Twnshp Pub Library - Tyrone
- Williamsburg Public Library - Williamsburg
There is one Pennsylvania state park in Blair County.
Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and, in at most two cases, towns. The following cities, boroughs and townships are located in Blair County:
Census-designated places are geographical areas designated by the U.S. Census Bureau for the purposes of compiling demographic data. They are not actual jurisdictions under Pennsylvania law. Other unincorporated communities, such as villages, may be listed here as well.
† county seat
|Rank||City/Town/etc.||Population (2010 Census)||Municipal type||Incorporated|
|1||Altoona||46,320||City||1854 (borough) 1868 (city)|
|14||Foot of Ten||672||CDP|
|16||Tunnelhill (mostly in Cambria County)||363||Borough||1876|
- "PHMC Historical Markers Search" (Searchable database). Pennsylvania Historical and Museum Commission. Commonwealth of Pennsylvania. Retrieved January 25, 2014.
- "State & County QuickFacts". United States Census Bureau. Retrieved November 16, 2013.
- "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved March 5, 2015.
- "Population and Housing Unit Estimates". Retrieved October 14, 2018.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved March 5, 2015.
- "Historical Census Browser". University of Virginia Library. Retrieved March 5, 2015.
- Forstall, Richard L., ed. (March 24, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved March 5, 2015.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved March 5, 2015.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2008-01-31.
- Voter Registration Statistics. Dos.state.pa.us. Retrieved on 2014-11-04.
- Pennsylvania Department of Education. "Charter Schools in Pennsylvania". Retrieved February 9, 2011.
- "Archived copy". Archived from the original on 2013-12-21. Retrieved 2016-02-13.
- Blair County Business and Information Directory
- Forever Free: Blair County's Civil War
- The Blair County Historical Society
- Blair County government
- Blair County Chamber of Commerce
- Catharine Township
- Morrisons Cove Herald website
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