Place:Northumberland, Pennsylvania, United States

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source: Family History Library Catalog


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Northumberland County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 94,528. Its county seat is Sunbury.

Northumberland County was formed in 1772 from parts of Lancaster, Berks, Bedford, Cumberland, and Northampton Counties and named for the county of Northumberland in northern England. Northumberland County is a sixth class county according to the Pennsylvania's County Code.

Among its famous residents, Joseph Priestley, the enlightenment chemist and theologian, left England in 1796 due to religious persecution and settled on the Susquehanna River. His former house (originally purchased by chemists from Pennsylvania State University after a colloquium that founded the American Chemical Society) is a historical museum. Northumberland County makes up the entire Sunbury, PA Micropolitan Statistical Area.

Contents

Timeline

Date Event Source
1770 Land records recorded Source:Red Book: American State, County, and Town Sources
1771 Probate records recorded Source:Red Book: American State, County, and Town Sources
1772 County formed Source:Red Book: American State, County, and Town Sources
1790 First census Source:Population of States and Counties of the United States: 1790-1990
1820 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
1790 17,161
1800 27,797
1810 36,327
1820 15,424
1830 18,133
1840 20,027
1850 23,272
1860 28,922
1870 41,444
1880 53,123
1890 74,698
1900 90,911
1910 111,420
1920 122,079
1930 128,504
1940 126,887
1950 117,115
1960 104,138
1970 99,190
1980 100,381
1990 96,771

Research Tips

External links

  • Outstanding guide to Northumberland 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.

www.northumberlandco.org/


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