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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
Pierce County is a county in the U.S. state of Washington. As of the 2020 census, the population was 921,130, up from 795,225 in 2010, making it the second-most populous county in Washington, behind King County, and the 60th-most populous in the United States. The county seat and largest city is Tacoma. Formed out of Thurston County on December 22, 1852, by the legislature of Oregon Territory, it was named for U.S. President Franklin Pierce. Pierce County is in the Seattle metropolitan area (formally the Seattle-Tacoma-Bellevue, WA, metropolitan statistical area).
Pierce County is home to Mount Rainier, the tallest mountain and a volcano in the Cascade Range. Its most recent recorded eruption was between 1820 and 1854. There is no imminent risk of eruption, but geologists expect that the volcano will erupt again. If this should happen, parts of Pierce County and the Puyallup Valley would be at risk from lahars, lava, or pyroclastic flows. The Mount Rainier Volcano Lahar Warning System was established in 1998 to assist in the evacuation of the Puyallup River valley in case of eruption.
Timeline
Date | Event | Source
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1852 | County formed | Source:Red Book: American State, County, and Town Sources
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1853 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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1855 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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1855 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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1858 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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1860 | First census | Source:Population of States and Counties of the United States: 1790-1990
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1870 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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1891 | Birth records recorded | Source:Red Book: American State, County, and Town Sources
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Population History
- source: Source:Population of States and Counties of the United States: 1790-1990
Census Year | Population
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1860 | 1,115
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1870 | 1,409
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1880 | 3,319
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1890 | 50,940
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1900 | 55,515
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1910 | 120,812
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1920 | 144,127
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1930 | 163,842
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1940 | 182,081
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1950 | 275,876
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1960 | 321,590
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1970 | 411,027
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1980 | 485,643
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1990 | 586,203
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Research Tips
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