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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
Thurston County is a county located in the U.S. state of Washington. As of the 2020 census, its population was 294,793. The county seat and largest city is Olympia, the state capital.
Thurston County was created out of Lewis County by the government of Oregon Territory on January 12, 1852. At that time, it covered all of the Puget Sound region and the Olympic Peninsula. On December 22 of the same year, Pierce, King, Island, and Jefferson counties were split off from Thurston County. It is named after Samuel R. Thurston, the Oregon Territory's first delegate to Congress.
Thurston County comprises the Olympia-Tumwater, WA Metropolitan Statistical Area and is included in the Seattle-Tacoma, WA Combined Statistical Area.
Timeline
| Date | Event | Source
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| 1852 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1852 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1852 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1853 | Probate 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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| 1877 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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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 | 1,507
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| 1870 | 2,246
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| 1880 | 3,270
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| 1890 | 9,675
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| 1900 | 9,927
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| 1910 | 17,581
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| 1920 | 22,366
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| 1930 | 31,351
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| 1940 | 37,285
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| 1950 | 44,884
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| 1960 | 55,049
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| 1970 | 76,894
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| 1980 | 124,264
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| 1990 | 161,238
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Cemeteries
Cemeteries of Thurston County, Washington, United States
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