Clayton County, Iowa
|Clayton County, Iowa|
Winter scene near Elkader
Location in the state of Iowa
Iowa's location in the U.S.
|Named for||John M. Clayton|
|• Total||792.81 sq mi (2,053 km2)|
|• Land||778.81 sq mi (2,017 km2)|
|• Water||14.00 sq mi (36 km2), 1.77%|
|• Density||23.3/sq mi (9/km²)|
|Time zone||Central: UTC-6/-5|
Clayton County is a county located in the U.S. state of Iowa. The population was 18,129 in the 2010 census, a decline from 18,678 in 2000. Its county seat is Elkader. The county was established in 1837 and was named in honor of John M. Clayton, United States Senator from Delaware and later Secretary of State under President Zachary Taylor.
According to the 2000 census, the county has a total area of 792.81 square miles (2,053.4 km2), of which 778.81 square miles (2,017.1 km2) (or 98.23%) is land and 14.00 square miles (36.3 km2) (or 1.77%) is water.
- Allamakee County (north)
- Crawford County, Wisconsin (northeast), across the Mississippi River
- Grant County, Wisconsin (east), across the Mississippi River
- Dubuque County (southeast)
- Delaware County (south)
- Buchanan County (southwest)
- Fayette County (west)
- Winneshiek County (northwest)
National protected areas
- Driftless Area National Wildlife Refuge (part)
- Effigy Mounds National Monument (part)
- Upper Mississippi River National Wildlife and Fish Refuge (part)
Clayton County is part of the Driftless Area, a region that completely missed being ice-covered during the last ice age. Streams have deeply carved valleys, while the Mississippi River has spectacular bluffs.
The 2010 census recorded a population of 18,129 in the county, with a population density of 23.272/sq mi (8.985/km2). There were 8,999 housing units, of which 7,599 were occupied.
As of the census of 2000, there were 18,678 people, 7,375 households, and 5,132 families residing in the county. The population density was 24 people per square mile (9/km²). There were 8,619 housing units at an average density of 11 per square mile (4/km²). The racial makeup of the county was 98.93% White, 0.14% Black or African American, 0.22% Native American, 0.11% Asian, 0.01% Pacific Islander, 0.19% from other races, and 0.41% from two or more races. 0.76% of the population were Hispanic or Latino of any race.
There were 7,375 households out of which 30.90% had children under the age of 18 living with them, 59.70% were married couples living together, 6.10% had a female householder with no husband present, and 30.40% were non-families. 26.30% of all households were made up of individuals and 13.30% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.98.
In the county the population was spread out with 25.40% under the age of 18, 6.50% from 18 to 24, 26.00% from 25 to 44, 23.60% from 45 to 64, and 18.50% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 97.60 males. For every 100 females age 18 and over, there were 95.50 males.
The median income for a household in the county was $34,068, and the median income for a family was $40,199. Males had a median income of $27,165 versus $19,644 for females. The per capita income for the county was $16,930. About 5.70% of families and 8.60% of the population were below the poverty line, including 9.60% of those under age 18 and 9.40% of those age 65 or over.
Clayton County is divided into these townships:
- National Register of Historic Places listings in Clayton County, Iowa
- The Clayton County Courthouse Article
- "Population and Housing Occupancy Status: 2010 - State -- County". United States Census Bureau American FactFinder. Retrieved March 12, 2011.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 84.
- "Census 2000 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-02-13.
- "U.S. Decennial Census". Census.gov. Retrieved August 1, 2013.
- "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2012". Census.gov. Retrieved August 1, 2013.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
|Wikimedia Commons has media related to Clayton County, Iowa.|
- Clayton County official website
- Clayton County Development Corporation's website
- Clayton County Health and Demographic Data
||Winneshiek County||Allamakee County||Crawford County, Wisconsin|
|Fayette County||Grant County, Wisconsin|
|Buchanan County||Delaware County||Dubuque County|