Barnwell County, South Carolina
Barnwell County: county in South Carolina, United States
About
Barnwell County is a county located in the U.S. state of South Carolina. As of the 2010 census, the population was 22,621 and a population density of 16 people per km². After 10 years in 2020 county had an estimated population of 20,805 inhabitants. Its county seat is Barnwell. The county was created 226 years ago in 1799.
County Snapshot
Barnwell County at a glance
Barnwell County currently has 8 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
8
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
South Carolina counties
46
Open related pagesLargest city
Boiling SpringsPopulation 5,076
Top linked places
Quick Facts about Barnwell County
| Population | 20,805 (2020) |
| Country | United States of America |
| State | South Carolina (United States) |
| Area | 1443 km2 |
| Water as percent of area | 1.6% |
| Land as percent of area | 98.4% |
| Latitude & Longitude | 33.2661,-81.4350 |
| Named for | John Barnwell |
| Altitude | 253 feet / 77 meters |
| Capital | Barnwell |
| Establishment | January 01, 1800 |
| Time Zone | America/New_York |
| Local time | 04:53:57 (19th April 2026) |
| Density | 14 Pop. per km² as of 2020 |
| Population growth | -8.73% (2010-2020) |
| Weather | 80℉ Slight Chance Rain Showers 7-days weather |
Geography
Barnwell County is located at 33°15'58"N 81°26'6"W (33.2660600, -81.4350200). It has 5 neighbors: Burke County, Aiken County, Allendale County, Bamberg County and Orangeburg County.
Barnwell County map
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The largest city of Barnwell County is Boiling Springs with a population of 5,076. Other cities include, Barnwell population 4,260, Williston population 2,912, Blackville population 2,173 and Hilda population 408. See all Barnwell County cities & populated places.
Barnwell County Populated Places
Cities, towns, neighborhoods & other populated places in Barnwell County.
| City Name | Population | Title |
|---|---|---|
| Boiling Springs | 5,076 | City in North Carolina, USA |
| Barnwell | 4,260 | City in Barnwell County, South Carolina, United States |
| Williston | 2,912 | Town in Barnwell County, South Carolina, United States |
| Blackville | 2,173 | City in Barnwell County, South Carolina, United States of America |
| Hilda | 408 | American town |
| Snelling | 259 | Town in Barnwell County, South Carolina, United States |
| Elko | 180 | Human settlement in Barnwell County, South Carolina, United States of America |
| Kline | 180 | Town in Barnwell County, South Carolina, United States |
Weather
A slight chance of rain showers after 8am. Mostly cloudy, with a high near 80.
7-Day ForecastOfficial website of Barnwell County
Official Website- Barnwell
Demographics
According to census records, the population of Barnwell County decreased by 8.73% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 22,621 | - | census |
| 2011 | 22,460 | -0.72% | estimation process |
| 2012 | 22,357 | -0.46% | estimation process |
| 2013 | 22,210 | -0.66% | estimation process |
| 2014 | 22,024 | -0.84% | estimation process |
| 2015 | 21,781 | -1.12% | estimation process |
| 2016 | 21,606 | -0.81% | estimation process |
| 2017 | 21,355 | -1.18% | estimation process |
| 2018 | 21,121 | -1.11% | estimation process |
| 2019 | 20,866 | -1.22% | estimation process |
| 2020 | 20,805 | -0.29% | estimation process |
People born in Barnwell County (4)
People born in Barnwell County, including politician James Overstreet, Methodist Bishop Holland Nimmons McTyeire, journalist, educator, stenographer, school founder Rosa Louise Woodberry, .
More notable people
- Sarah Lowe Twiggs (poet) she was born in 29/03/1839
South Carolina Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Greenville County | 532,486 | County in South Carolina, United States |
| Richland County | 419,051 | County in South Carolina, United States |
| Charleston County | 417,981 | County in South Carolina, United States of America |
| Horry County | 365,449 | County in South Carolina, United States |
| Spartanburg County | 326,205 | County in South Carolina, United States |
| Lexington County | 303,946 | County in South Carolina, United States |
| York County | 289,105 | County in South Carolina, United States |
| Berkeley County | 235,987 | County in South Carolina, United States of America |
| Anderson County | 204,353 | County in Tennessee, United States |
| Beaufort County | 195,656 | County in South Carolina, United States |
| Anderson County Airport | 194,692 | A county-owned airport located in Anderson County, South Carolina. |
| Aiken County | 172,895 | County in South Carolina, United States |
| Dorchester County | 165,737 | County in Maryland, United States |
| Charleston | 139,714 | The most populous city in South Carolina. |
| Florence County | 137,588 | County in South Carolina, United States |
| Columbia | 132,130 | The most populous city in South Carolina. |