Clayton County, Iowa


Clayton County is a one of the county from Iowa's 99 counties, located in Midwestern Region (West North Central) of United States. Clayton County had an official population of 18678 in 2000. As of July 2008, the estimated population of the county is 17566, It is the 40th largest county by population in the U.S. state of Iowa. According to the U.S. Census Bureau, the county has a total area of 792.81 square miles (2053.37 kmē), of which, 778.81 square miles (2017.11 kmē) of it is land and 14 square miles (36.26 kmē) of it is water, making it the fifth largest by size in Iowa. It is ranks ninth in the size of its inland waterways in Iowa.

Clayton County Iowa
Map of Clayton County, Iowa

According to 2000 Census Bureau, there were 18678 people, 7375 households, and 5134 families living in the county. The population density was 24 people per square mile (9.27/kmē), making it the 63rd most densely populated county in Iowa. There were 8619 housing units at an average density of 11.1 per square mile (4.29/kmē). The average household size was 2.47 people, and the average family size was 2.98 people. In the county the population was spread out, with 25.4% under the age of 18, 6.5% from 18 to 24, 26% from 25 to 44, 23.6% from 45 to 64, and 18.5% who were 65 or older. For every 100 males there were 102.5 females. For every 100 males age 18 and over, there were 104.7 females. According to July 2008 Census Bureau estimates, the population of the county is 17566, The racial or ethnic makeup of the county was 98.74% White, 0.21% Black or African American, 0.27% American Indian, 0.23% Asian, 0.01% Native Hawaiian, and 0.54% from two or more races.

Clayton County Iowa Population 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Population 2000-2008
Clayton County Iowa School Enrollment
School Enrollment 2000
Clayton County Iowa GDP
GDP 2000

The median income for a household in the county was $34068, making it the 27th poorest county by median household income among the Iowa. The median income for a family in the county was $40199, making its Iowa's 13th lowest county by median family income. The per capita income for the county was $16930, making it the 26th poorest county by per capita income among the Iowa.

In 2000, 4406 pupils and students, of which 48.34% are male and 51.66% are female, 23.59% of the total population, are in the education system. Of which, percentage of enrollment student are in, 4.81% nursery or pri school, 5.36% kindergarten, 51.93% elementary school, 29.23% high school and 8.67% College graduate school.

RankCityCountyTotal Area mi2Land Area mi2Water Area mi2PopulationDensity mi2Per capita IncomeHouse hold Income
1Postville CityAllamakee County, Clayton County2.082.08022731093.61426432667
2Clayton CityClayton County0.550.5505599.82121431250
3Elkader CityClayton County1.41.40146510491678532857
4Elkport CityClayton County0.190.19088470.21151824375
5Farmersburg CityClayton County0.40.40300745.91479634000
6Garber CityClayton County0.240.240103434.91161822708
7Garnavillo CityClayton County0.880.880754858.32096435694
8Guttenberg CityClayton County2.092.060.031987962.31709829151
9Littleport CityClayton County0.330.33026781623723125
10Luana CityClayton County1.051.050249237.11616529583
11Marquette CityClayton County1.281.220.06421345.21803730179
12Mcgregor CityClayton County1.311.310871665.81563630163
13Millville CityClayton County0.070.07023342.61437829583
14Monona CityClayton County1.151.15015501344.61874635000
15North Buena Vista CityClayton County0.740.690.04124178.41272920625
16Osterdock CityClayton County0.450.45050109.91856631250
17St. Olaf CityClayton County0.250.250136550.81528434583
18Strawberry Point CityClayton County2.052.0501386677.71840034766
19Volga CityClayton County0.790.7902473141344024375
20Edgewood CityDelaware County, Clayton County0.840.8409231092.61618735455
YearPopulation
April 2000 census18678
April 2000 Estimate18678
July 2000 Estimate18607
July 2001 Estimate18454
July 2002 Estimate18218
July 2003 Estimate18119
July 2004 Estimate18043
July 2005 Estimate17876
July 2006 Estimate17775
July 2007 Estimate17672
July 2008 Estimate17566
SchoolMaleFemaleTotal
Nursery school86126212
Kindergarten118118236
Elementary school115011382288
High school6766121288
College or graduate school100282382
PlaceMedian household incomeMedian family incomePer capita income
Clayton County, Iowa$34068$40199$16930
Iowa, United States$39469$48005$19674
United States$41994$50046$21587