South Carolina · Census place 4504060
Barnwell, South Carolina
Barnwell is a city in Barnwell County, South Carolina with an estimated 4,589 residents on July 1, 2024. It is the 70th largest of 152 incorporated places of 1,000+ people in the state.
- Population 2024
- 4,589
- #70 of 152 in South Carolina
- Change since 2020
- -1.3%
- -61 people
- Land area
- 7.8 sq mi
- + 0.15 sq mi water
- Density
- 585 / sq mi
- State median 1,356
Measure from here
Tools and pages that start from Barnwell
Barnwell population, 2020 to 2024
Barnwell lost 61 residents from July 2020 to July 2024, a change of -1.3%. In the latest year it moved by +5.
Barnwell covers 7.84 square miles of land and 0.15 of water, for 585 people per square mile of land. The median South Carolina place of 5,000+ has 1,356, so Barnwell is less dense than the typical town.
What county Barnwell is in
All of Barnwell's residents live in Barnwell County, which had 20,495 residents in 2024. Barnwell holds 22.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.
ZIP codes in Barnwell
1 ZIP Code Tabulation Area (ZCTA) overlaps Barnwell by at least 10% of the ZCTA's or the city's land: 29812. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.
Where Barnwell is
The Census internal point of Barnwell is at 33.241600, -81.366100. Columbia, the capital, is 55.8 miles NNE in a straight line. The nearest larger place is Aiken, SC (32,694 people), 28.8 miles away. The nearest city of 100,000 or more is Augusta-Richmond County, GA, 41.8 miles away.
Internal point
- Decimal
- 33.241600, -81.366100
- DMS
- 33°14'29.76"N 81°21'57.96"W
- UTM
- 17N 465893.9E 3678131.0N
- Geohash
- djyjh7rn2
- Plus code
- 865W6JRM+JH
Daylight in Barnwell
At 33.24° N, Barnwell gets about 14 h 21 min of daylight around the June solstice and 9 h 57 min around the December solstice, a swing of 4 h 24 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.
Places near Barnwell
The eight nearest incorporated places of 1,000+ in South Carolina, measured between internal points. The closest is Blackville, 8.4 miles away, with 1,906 people.
Questions people ask
What is the population of Barnwell, SC?
4,589 on July 1, 2024, in the Census Vintage 2024 estimates. That is down 61 (1.3%) from 4,650 in July 2020.
What county is Barnwell in?
Barnwell County. All of its residents live in that county.
What ZIP codes cover Barnwell?
1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 29812.
How far is Barnwell from Columbia?
55.8 miles (89.8 km) in a straight line, heading NNE from Barnwell.
What is the nearest larger city to Barnwell?
Aiken, SC, with 32,694 residents, 28.8 miles away between internal points.
Sources and data as of
Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.
- 01Census Vintage 2024 subcounty population estimates
- 02Census 2024 Gazetteer, places
- 03Census 2020 ZCTA to place relationship file
- 04Census 2024 cartographic boundary file, counties (1:5,000,000)
How every number is computed: methodology. Spotted a wrong figure? Report an error.