Clay County, South Dakota

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Clay County is a county located in South Dakota, in the Midwestern Region (West North Central) of United States. As per the 2000 census, county has a population of 13537 inhabitants. The July 2008 population estimate is 13605, It is the 15th most populous county in the U.S. state of South Dakota. The county has a total area of 416.7 mi˛ (1079.25 square kilometre), of which, 411.6 square miles (1066.04 square kilometre) of it is land and 5.1 square miles (13.21 square kilometre) of it is water, it is the smallest in terms of geographical size.


As of the census of 2000, there were 13537 people in the county, organized into 4878 households, and 2720 families residing in the county. The population density was 32.9 people per square mile (12.7/km˛), it is the seventh most populated county in terms of population density. There were 5438 housing units at an average density of 13.2 per square mile (5.1/km˛). The average household size was 2.32 persons, and the average family size was 2.93 persons. In the county the population was distributed as follows: 18.8% under the age of 18, 31.5% from 18 to 24, 23.8% from 25 to 44, 15.8% from 45 to 64, and 10.1% who were 65 or older. For every 100 females there were 94.3 males. For every 100 females age 18 and over, there were 92.5 males. As of July 2008, the estimated population of the county is 13605, The racial or ethnic makeup of the county was 12567 White, 162 Black or African American, 348 American Indian, 335 Asian, 1 Native Hawaiian, and 192 from two or more races.

Population 2000-2008

School Enrollment 2000

GDP 2000

The median income for a household in the county was $27535, making its South Dakota's 14th lowest county by median household income. The median income for a family in the county was $41391, it is the 18th wealthiest county in terms of median family income. The per capita income for the county was $14452, it is the 45th wealthiest county in terms of per capita income.

In 2000, 6399 pupils and students, of which 3003 are male and 3396 are female, 47.27% of the total population, are in the education system. Of which, total enrollment of student are in, 149 nursery or pri school, 137 kindergarten, 1159 elementary school, 557 high school and 4397 College graduate school.

Rank	City	County	Total Area mi2	Land Area mi2	Water Area mi2	Population	Density mi2	Per capita Income	House hold Income
1	Vermillion City	Clay County	3.83	3.83	0	9765	2549.3	13909	24095
2	Wakonda Town	Clay County	0.38	0.38	0	374	978.2	15685	31875
3	Irene City	Turner County, Clay County, Yankton County	0.24	0.24	0	432	1790	14983	30500

Year	Population
April 2000 census	13537
April 2000 Estimate	13537
July 2000 Estimate	13497
July 2001 Estimate	13568
July 2002 Estimate	13413
July 2003 Estimate	13397
July 2004 Estimate	13265
July 2005 Estimate	13279
July 2006 Estimate	13312
July 2007 Estimate	13458
July 2008 Estimate	13605

School	Male	Female	Total
Nursery school	93	56	149
Kindergarten	54	83	137
Elementary school	592	567	1159
High school	257	300	557
College or graduate school	2007	2390	4397

Place	Median household income	Median family income	Per capita income
Clay County, South Dakota	$27535	$41391	$14452
South Dakota, United States	$35282	$43237	$17562
United States	$41994	$50046	$21587