Clayton County, Iowa

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Clayton County, Iowa
250px
Winter scene near Elkader
Map of Iowa highlighting Clayton County
Location in the U.S. state of Iowa
Map of the United States highlighting Iowa
Iowa's location in the U.S.
Founded 1837
Named for John M. Clayton
Seat Elkader
Largest city Guttenberg
Area
 • Total 793 sq mi (2,054 km2)
 • Land 779 sq mi (2,018 km2)
 • Water 14 sq mi (36 km2), 1.8%
Population
 • (2010) 18,129
 • Density 23/sq mi (9/km²)
Congressional district 1st
Time zone Central: UTC-6/-5
Website www.claytoncountyia.gov

Clayton County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 18,129.[1] Its county seat is Elkader.[2] The county was established in 1837 and was named in honor of John M. Clayton,[3] United States Senator from Delaware and later Secretary of State under President Zachary Taylor.

Geography

File:Clayton County Route W68 IA.svg
Route W68 shield

According to the U.S. Census Bureau, the county has a total area of 793 square miles (2,050 km2), of which 779 square miles (2,020 km2) is land and 14 square miles (36 km2) (1.8%) is water.[4] It is the fifth-largest county in Iowa by area.

Adjacent counties

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Major highways

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National protected areas

Geology

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.

Demographics

Historical population
Census Pop. %±
1850 3,873 —
1860 20,728 435.2%
1870 27,771 34.0%
1880 28,829 3.8%
1890 26,733 −7.3%
1900 27,750 3.8%
1910 25,576 −7.8%
1920 25,032 −2.1%
1930 24,559 −1.9%
1940 24,334 −0.9%
1950 22,522 −7.4%
1960 21,962 −2.5%
1970 20,606 −6.2%
1980 21,098 2.4%
1990 19,054 −9.7%
2000 18,678 −2.0%
2010 18,129 −2.9%
Est. 2014 17,692 [5] −2.4%
U.S. Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2010-2013[1]

2010 census

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.[10]

2000 census

File:USA Clayton County, Iowa age pyramid.svg
2000 Census Age Pyramid for Clayton County

As of the census[11] 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.

Communities

Cities

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Unincorporated communities

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Townships

Clayton County is divided into these townships:

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See also

References

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External links

 Winneshiek County Allamakee County Crawford County, Wisconsin
Fayette County Grant County, Wisconsin
  Clayton County, Iowa  
Buchanan County Delaware County Dubuque County

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