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- source: Getty Thesaurus of Geographic Names
- source: Family History Library Catalog
- the text in this section is copied from an article in Wikipedia
Lawrence County is a county located in the U.S. state of Pennsylvania. In 2010, its population was 91,108. The county was added to the Pittsburgh Metropolitan Statistical Area in 2003. The county seat is New Castle.
Lawrence County was created on March 20, 1849, from parts of Beaver and Mercer counties. It was named after the USS Lawrence, Oliver Hazard Perry's original flagship at the Battle of Lake Erie during the War of 1812.
Timeline
Population History
- source: Source:Population of States and Counties of the United States: 1790-1990
| Census Year | Population
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| 1850 | 21,079
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| 1860 | 22,999
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| 1870 | 27,298
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| 1880 | 33,312
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| 1890 | 37,517
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| 1900 | 57,042
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| 1910 | 70,032
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| 1920 | 85,545
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| 1930 | 97,258
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| 1940 | 96,877
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| 1950 | 105,120
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| 1960 | 112,965
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| 1970 | 107,374
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| 1980 | 107,150
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| 1990 | 96,246
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Research Tips
External links
- Outstanding guide to Lawrence 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.rootsweb.com/~palawren
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