Place:Blair, Pennsylvania, United States

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source: Getty Thesaurus of Geographic Names
source: Family History Library Catalog


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Blair County is a county located in the U.S. Commonwealth of Pennsylvania. As of the 2020 census, the population was 122,822. Its county seat is Hollidaysburg. The county was created on February 26, 1846, from parts of Huntingdon and Bedford counties.

Blair County comprises the Altoona, PA Metropolitan Statistical Area. It is also part of the Altoona-Huntingdon, PA Combined Statistical Area, which includes Blair and Huntingdon counties.

Contents

Timeline

Date Event Source
1846 County formed Source:Red Book: American State, County, and Town Sources
1846 Land records recorded Source:Red Book: American State, County, and Town Sources
1846 Probate records recorded Source:Red Book: American State, County, and Town Sources
1850 First census Source:Population of States and Counties of the United States: 1790-1990
1850 No significant boundary changes after this year Source:Population of States and Counties of the United States: 1790-1990

Population History

source: Source:Population of States and Counties of the United States: 1790-1990
Census Year Population
1850 21,777
1860 27,829
1870 38,051
1880 52,740
1890 70,866
1900 85,099
1910 108,858
1920 128,334
1930 139,840
1940 140,358
1950 139,514
1960 137,270
1970 135,356
1980 136,621
1990 130,542

Research Tips

External links

  • Outstanding guide to Blair County family history and genealogy resources (FamilySearch Research Wiki). Birth, marriage, and death records, censuses, wills, deeds, county histories, cemeteries, churches, newspapers, libraries, and genealogical societies.

http://blair.sapdc.org/


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