Day County, South Dakota
Day County: county in South Dakota, United States of America
About
Day County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 5,710 and a population density of 2 people per km². After 10 years in 2020 county had an estimated population of 5,345 inhabitants. Its county seat is Webster. The county was created 146 years ago in 1879.
County Snapshot
Day County at a glance
Day County currently has 9 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
9
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
WebsterPopulation 1,694
Top linked places
Quick Facts about Day County
| Population | 5,345 (2020) |
| Country | United States of America |
| State | South Dakota (United States) |
| Area | 2826 km2 |
| Water as percent of area | 5.8% |
| Land as percent of area | 94.2% |
| Latitude & Longitude | 45.3672,-97.6074 |
| Altitude | 1,877 feet / 572 meters |
| Capital | Webster |
| Establishment | January 01, 1880 |
| Time Zone | UTC−06:00 |
| Local time | 07:27:14 (15th April 2026) |
| Density | 2 Pop. per km² as of 2020 |
| Population growth | -6.83% (2010-2020) |
| Weather | 63℉ Slight Chance Light Rain 7-days weather |
Geography
Day County is located at 45°22'2"N 97°36'27"W (45.3671500, -97.6074100). It has 7 neighbors: Brown County, Clark County, Codington County, Grant County, Marshall County, Roberts County and Spink County.
Day County map
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The largest city of Day County is Webster with a population of 1,694. Other cities include, Butler population 245, Roslyn population 165, Pierpont population 116 and Andover population 106. See all Day County cities & populated places.
Day County Populated Places
Cities, towns, neighborhoods & other populated places in Day County.
| City Name | Population | Title |
|---|---|---|
| Webster | 1,694 | City in and county seat of Day County, South Dakota, United States |
| Waubay | 455 | Township in Day County, South Dakota |
| Butler | 245 | Town in South Dakota, United States of America |
| Roslyn | 165 | Town in Day County, South Dakota, United States |
| Pierpont | 116 | Town in Day County, South Dakota, United States |
| Andover | 106 | Town in Day County, South Dakota, United States |
| Grenville | 83 | Town in South Dakota, United States of America |
| Bristol | 57 | City in Day County, South Dakota, United States |
| Lily | 4 | Town in South Dakota, United States of America |
Weather
A slight chance of rain before 1pm. Partly sunny, with a high near 63. Chance of precipitation is 20%.
7-Day ForecastOfficial website of Day County
Official Website- Webster
Demographics
According to census records, the population of Day County decreased by 6.83% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 5,710 | - | census |
| 2011 | 5,740 | 0.52% | estimation process |
| 2012 | 5,592 | -2.65% | estimation process |
| 2013 | 5,575 | -0.3% | estimation process |
| 2014 | 5,503 | -1.31% | estimation process |
| 2015 | 5,496 | -0.13% | estimation process |
| 2016 | 5,509 | 0.24% | estimation process |
| 2017 | 5,494 | -0.27% | estimation process |
| 2018 | 5,507 | 0.24% | estimation process |
| 2019 | 5,424 | -1.53% | estimation process |
| 2020 | 5,345 | -1.48% | estimation process |
People born in Day County (1)
South Dakota politician (1923-2016) Frank E. Denholm was born in Day County
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 |