Clay County, Iowa

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Clay County is a county located in the U.S. state of Iowa. As of 2000, the population was 17,372. Its name is in honor of Henry Clay, Jr. a colonel who died in action in the Mexican-American War, and son of Henry Clay, famous American statesman. Its county seat is Spencer.[1] It also holds the annual Clay County Fair. The very first newspaper in Clay County was the Peterson Patriot which started circulation in 1880.



According to the U.S. Census Bureau, the county has a total area of 573 square miles (1,484.1 km2), of which 569 square miles (1,473.7 km2) is land and 4 square miles (10.4 km2) (0.63%) is water. Clay County is home to the large Barringer Slough wetland.

Major highways

Adjacent counties


As of the census[2] of 2000, there were 17,372 people, 7,259 households, and 4,776 families residing in the county. The population density was 30 people per square mile (12/km²). There were 7,828 housing units at an average density of 14 per square mile (5/km²). The racial makeup of the county was 98.08% White, 0.17% Black or African American, 0.10% Native American, 0.82% Asian, 0.03% Pacific Islander, 0.25% from other races, and 0.55% from two or more races. 1.13% of the population were Hispanic or Latino of any race.

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