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Linn County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 230,299, and was estimated to be 232,028 in 2025, making it the second-most populous county in Iowa. The county seat and the largest city is Cedar Rapids. Linn County is named in honor of Senator Lewis F. Linn of Missouri. Linn County is included in the Cedar Rapids, IA Metropolitan statistical area.
Description adapted from Wikipedia, CC BY-SA 4.0.
The earliest inhabitants of Linn County, prior to Anglo settlement, were the Sac and Fox tribes. Relations were described by 20th century historians as amicable. Native Americans provided food and furs to whites in exchange for merchandise. Linn County was created as a named but unorganized area on December 21, 1837, as a part of Wisconsin Territory. It became part of Iowa Territory on July 3, 1838, when the territory was organized. Linn County was organized by the first legislative assembly of the Iowa Territory on January 15, 1839. A site was selected for its first county seat along Indian Creek, and was named Marion, after the Revolutionary War general Francis Marion.
Adapted from Wikipedia, CC BY-SA 4.0.
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