Clay County, South Dakota
Clay County: county in Clay County South Dakota, United States
About
Clay County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 13,864 and a population density of 13 people per km². After 10 years in 2020 county had an estimated population of 14,246 inhabitants. Its county seat is Vermillion. The county was created 164 years ago in 1861.
County Snapshot
Clay County at a glance
Clay County currently has 5 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
5
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
South Dakota counties
66
Open related pagesLargest city
WakondaPopulation 296
Top linked places
Quick Facts about Clay County
| Population | 14,246 (2020) |
| Country | United States of America |
| State | South Dakota (United States) |
| Different from | Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County, Clay County |
| Area | 1079 km2 |
| Water as percent of area | 1.2% |
| Land as percent of area | 98.8% |
| Latitude & Longitude | 42.9147,-96.9757 |
| Named for | Henry Clay |
| Capital | Vermillion |
| Establishment | January 01, 1862 |
| Time Zone | America/Chicago |
| Local time | 21:00:11 (17th April 2026) |
| Density | 13 Pop. per km² as of 2020 |
| Population growth | 2.68% (2010-2020) |
| Weather | 65℉ Chance Showers And Thunderstorms 7-days weather |
Geography
Clay County is located at 42°54'53"N 96°58'32"W (42.9146500, -96.9756600). It has 6 neighbors: Turner County, Cedar County, Dixon County, Lincoln County, Union County and Yankton County.
Clay County map
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The largest city of Clay County is Wakonda with a population of 296. Other cities include and Vermillion population 86. See all Clay County cities & populated places.
Clay County Populated Places
Cities, towns, neighborhoods & other populated places in Clay County.
| City Name | Population | Title |
|---|---|---|
| Wakonda | 296 | Town in Clay County, South Dakota, United States |
| Meckling | 235 | Township in Clay County, South Dakota |
| Vermillion | 86 | County seat of Clay County, South Dakota, United States |
| Lodi | 80 | Township in Spink County, South Dakota |
| Greenfield | 41 | Township in Brown County, South Dakota |
Weather
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 65. Chance of precipitation is...
7-Day ForecastOfficial website of Clay County
Official Website- Vermillion
Demographics
The population of Clay County increased by 2.68% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 13,864 | - | census |
| 2011 | 13,983 | 0.85% | estimation process |
| 2012 | 14,064 | 0.58% | estimation process |
| 2013 | 13,896 | -1.21% | estimation process |
| 2014 | 13,883 | -0.09% | estimation process |
| 2015 | 13,768 | -0.84% | estimation process |
| 2016 | 13,933 | 1.18% | estimation process |
| 2017 | 14,032 | 0.71% | estimation process |
| 2018 | 13,983 | -0.35% | estimation process |
| 2019 | 14,070 | 0.62% | estimation process |
| 2020 | 14,246 | 1.24% | estimation process |
People born in Clay County (1)
American politician Donald McMurchie was born in Clay County
Other places with the same name (17)
- Clay County, Missouri county in North Carolina, United States with a population of 253,463 people.
- Clay County, Florida county in Florida, United States with a population of 221,770 people.
- Clay County, Minnesota county in Minnesota, United States with a population of 64,690 people.
- Clay County, Indiana county in Indiana, United States with a population of 26,246 people.
- Clay County, Kentucky county in Kentucky, United States with a population of 19,631 people.
- Clay County, Mississippi county in Mississippi, United States with a population of 19,352 people.
- Clay County, Iowa county in Iowa, United States with a population of 15,976 people.
- Clay County, Arkansas county in Arkansas, United States with a population of 14,375 people.
- Clay County, Alabama county in Alabama, United States with a population of 13,112 people.
- Clay County, Illinois county in Illinois, United States with a population of 13,079 people.
- Clay County, North Carolina county in North Carolina, United States with a population of 11,505 people.
- Clay County, Texas county in Texas, United States with a population of 10,550 people.
- Clay County, West Virginia county in West Virginia, United States with a population of 8,341 people.
- Clay County, Kansas county in Kansas, United States with a population of 8,025 people.
- Clay County, Tennessee county in Tennessee, United States with a population of 7,629 people.
- Clay County, Nebraska county in Nebraska, United States with a population of 6,216 people.
- Clay County, Georgia county in Georgia, United States with a population of 2,866 people.
South Dakota Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Minnehaha County | 196,659 | County in South Dakota, United States of America |
| Sioux Falls | 157,584 | The largest city in South Dakota. |
| Pennington County | 115,926 | County in South Dakota, United States of America |
| Rapid City | 77,503 | The second most populous city in South Dakota. |
| Lincoln County | 63,019 | County in South Dakota, United States |
| Brown County | 38,738 | County in South Dakota, United States |
| Brookings County | 35,603 | County in South Dakota, United States of America |
| Meade County | 28,588 | County in South Dakota, United States |
| Codington County | 28,186 | County in South Dakota, United States of America |
| Lawrence County | 26,221 | County in South Dakota, United States |
| Yankton County | 22,742 | County in South Dakota, United States |
| Watertown | 22,303 | City in and county seat of Codington County, South Dakota, United States |
| Davison County | 19,812 | County in South Dakota, United States of America |
| Beadle County | 18,513 | County in South Dakota, United States |
| Hughes County | 17,336 | County in Oklahoma, United States |
| Union County | 16,192 | County in South Dakota, United States |