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Clay County, Iowa

Clay County, Iowa
Clay County IA Courthouse.jpg
Map of Iowa highlighting Clay County
Location in the U.S. state of Iowa
Map of the United States highlighting Iowa
Iowa's location in the U.S.
Founded 1851
Named for Henry Clay, Jr
Seat Spencer
Largest city Spencer
Area
 • Total 573 sq mi (1,484 km2)
 • Land 567 sq mi (1,469 km2)
 • Water 5.4 sq mi (14 km2), 0.9%
Population (est.)
 • (2015) 16,507
 • Density 29/sq mi (11/km²)
Congressional district 4th
Time zone Central: UTC-6/-5
Website www.co.clay.ia.us

Clay County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 16,667. Its county seat is Spencer. 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.

Clay County comprises the Spencer, IA Micropolitan Statistical Area.

Clay County 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 (1,480 km2), of which 567 square miles (1,470 km2) is land and 5.4 square miles (14 km2) (0.9%) is water. Clay County is home to the large Barringer Slough wetland.

The 2010 census recorded a population of 16,667 in the county, with a population density of 29.292/sq mi (11.310/km2). There were 8,062 housing units, of which 7,282 were occupied.

As of the census 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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