Yankton County, South Dakota
As of the census of 2000, there were 21652 residents, 8187 households, and 5407 families in the county. The population density was 41.5 people per square mile (16.02/kmē), making it the fourth most densely populated county in South Dakota. There were 8840 housing units at an average density of 16.9 per square mile (6.53/kmē). The average household size was 2.43 and the average family size was 3.03. In the county the population was spread out, with 25.7% under the age of 18, 8.7% from 18 to 24, 29% from 25 to 44, 22% from 45 to 64, and 14.6% who were 65 or older. For every 100 females there were 101.9 males. For every 100 females age 18 and over, there were 101.3 males. The July 2008 population estimate is 21835, The racial makeup of the county was 95.14% White, 1.51% Black or African American, 1.94% American Indian, 0.44% Asian, 0.02% Native Hawaiian, and 0.96% from two or more races.
The median income for a household in the county was $35374, it is the 14th wealthiest county in terms of median household income. The median income for a family in the county was $43600, it is 13th wealthiest county by median family income in South Dakota. The per capita income for the county was $17312, making its South Dakota's 19th highest county by per capita income.
In 2000, 5720 pupils and students, of which 49.32% are male and 50.68% are female, 26.42% of the total population, are in the education system. Of which, percentage of enrollment student are in, 6.49% nursery or pri school, 5.7% kindergarten, 45.33% elementary school, 22.73% high school and 19.76% 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 | Irene City | Turner County, Clay County, Yankton County | 0.24 | 0.24 | 0 | 432 | 1790 | 14983 | 30500 |
| 2 | Gayville Town | Yankton County | 0.19 | 0.19 | 0 | 418 | 2181.3 | 13535 | 35000 |
| 3 | Lesterville Town | Yankton County | 0.2 | 0.2 | 0 | 158 | 787 | 15487 | 41667 |
| 4 | Mission Hill Town | Yankton County | 0.33 | 0.33 | 0 | 183 | 557.2 | 14405 | 35625 |
| 5 | Utica Town | Yankton County | 0.26 | 0.26 | 0 | 86 | 325.2 | 20057 | 25417 |
| 6 | Volin Town | Yankton County | 0.19 | 0.19 | 0 | 207 | 1068.5 | 12123 | 30938 |
| 7 | Yankton City | Yankton County | 8 | 7.76 | 0.24 | 13528 | 1743.2 | 17954 | 31843 |
| Year | Population |
|---|---|
| April 2000 census | 21652 |
| April 2000 Estimate | 21652 |
| July 2000 Estimate | 21606 |
| July 2001 Estimate | 21467 |
| July 2002 Estimate | 21476 |
| July 2003 Estimate | 21525 |
| July 2004 Estimate | 21667 |
| July 2005 Estimate | 21617 |
| July 2006 Estimate | 21639 |
| July 2007 Estimate | 21672 |
| July 2008 Estimate | 21835 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 201 | 170 | 371 |
| Kindergarten | 145 | 181 | 326 |
| Elementary school | 1316 | 1277 | 2593 |
| High school | 698 | 602 | 1300 |
| College or graduate school | 461 | 669 | 1130 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Yankton County, South Dakota | $35374 | $43600 | $17312 |
| South Dakota, United States | $35282 | $43237 | $17562 |
| United States | $41994 | $50046 | $21587 |