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Union County, Iowa: Map


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Union County is a county located in the state of Iowamarker, United Statesmarker. As of 2000, the population was 12,309. Its county seat is Crestonmarker.


According to the U.S. Census Bureau, the county has a total area of 426 square miles (1,103 km²), of which 424 square miles (1,099 km²) is land and 2 square miles (4 km²) (0.37%) is water.

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Adjacent counties


2000 Census Age Pyramid for Union County.

As of the census of 2000, there were 12,309 people, 5,242 households, and 3,354 families residing in the county. The population density was 29 people per square mile (11/km²). There were 5,657 housing units at an average density of 13 per square mile (5/km²). The racial makeup of the county was 98.44% White, 0.23% Black or African American, 0.17% Native American, 0.25% Asian, 0.32% from other races, and 0.58% from two or more races. 1.02% of the population were Hispanic or Latino of any race.

There were 5,242 households out of which 27.50% had children under the age of 18 living with them, 53.10% were married couples living together, 8.00% had a female householder with no husband present, and 36.00% were non-families. 31.30% of all households were made up of individuals and 14.40% had someone living alone who was 65 years of age or older. The average household size was 2.29 and the average family size was 2.87.

In the county the population was spread out with 23.30% under the age of 18, 8.70% from 18 to 24, 25.30% from 25 to 44, 24.00% from 45 to 64, and 18.70% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 92.10 males. For every 100 females age 18 and over, there were 89.00 males.

The median income for a household in the county was $31,905, and the median income for a family was $41,453. Males had a median income of $27,700 versus $20,760 for females. The per capita income for the county was $16,690. About 7.40% of families and 11.40% of the population were below the poverty line, including 13.80% of those under age 18 and 9.30% of those age 65 or over.

Cities and towns


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