Sully County, South Dakota
Sully County: County in South Dakota, United States
About
Sully County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 1,373. After 10 years in 2020 county had an estimated population of 1,391 inhabitants. Its county seat is Onida. The county was created 115 years ago in 1908.
Quick Facts about Sully County
| Population : | 1,391 (2020) |
| Country : | United States of America |
| State : | South Dakota (United States) |
| Area : | 2772 km2 |
| Water as percent of area : | 5.9% |
| Land as percent of area : | 94.1% |
| Named for : | Alfred Sully |
| Altitude : | 1,811 feet / 552 meters |
| Capital : | Onida |
| Establishment : | January 01, 1909 |
| Time Zone : | America/Chicago |
| Local time : | 11:27:10 (3rd December 2024) |
| Density : | 1 Pop. per km² as of 2020 |
| Population growth : | 1.29% (2010-2020) |
Geography
Sully County is located at 44°42'56"N 100°7'56"W (44.7155800, -100.1322000).
Sully County map
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The largest city of Sully County is Onida with a population of 628. . See all Sully County cities & populated places.
Sully County Populated Places
Cities, towns, neighborhoods & other populated places in Sully County.
| City Name | Population | Title |
|---|---|---|
| Onida | 628 | City in and county seat of Sully County, South Dakota, United States |
| Agar | 80 | Town in South Dakota, United States of America |
- Official Website
Official website of Sully County
Sully County has 1 neighbours.
- Potter County county in South Dakota, United States
- Onida
Demographics
The population of Sully County increased by 1.29% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 1,373 | - | census |
| 2011 | 1,374 | 0.07% | estimation process |
| 2012 | 1,428 | 3.78% | estimation process |
| 2013 | 1,435 | 0.49% | estimation process |
| 2014 | 1,405 | -2.14% | estimation process |
| 2015 | 1,401 | -0.29% | estimation process |
| 2016 | 1,410 | 0.64% | estimation process |
| 2017 | 1,398 | -0.86% | estimation process |
| 2018 | 1,377 | -1.53% | estimation process |
| 2019 | 1,391 | 1.01% | estimation process |
| 2020 | 1,391 | 0% | estimation process |
People born in Sully County (1)
American biochemist Irwin Gunsalus was born in Sully 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 |
