Barnwell County, South Carolina

7 cities & places have their primary county here.

Population: 20,565
Median household income: $41,800
Median home value: $97,200

Barnwell County is a county in South Carolina with a population of 20,565. 7 cities and places have their primary county here. Its median household income of $41,800 runs below the South Carolina figure of $66,818.

From 2019 to 2023, Barnwell County's population declined 3.7% from 21,346 to 20,565, while its median household income rose 16.7% from $35,803 to $41,800.

28.5% of residents live below the poverty line. Households average 2.49 people.

Demographics

ACS 2019–2023

Population: 20,565
Median age: 40.7 yrs
Median household income: $41,800
Median home value: $97,200
Median gross rent: $695
Housing units: 9,901
Homeownership rate: 71.0%
Bachelor's degree or higher: 12.8%
Unemployment rate: 7.2%

Trends

ACS 5-year · 2019–2023

Population

21,34620,565

Median household income

$35,803$41,800

Median home value

$81,900$97,200

Median gross rent

$621$695

Year	Population	Median household income	Median home value	Median gross rent
2019	21,346	$35,803	$81,900	$621
2020	21,170	$37,572	$87,600	$646
2021	20,801	$38,237	$89,200	$699
2022	20,653	$42,470	$97,100	$763
2023	20,565	$41,800	$97,200	$695

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 56.6%

5 to 1717.1%

18 to 248.6%

25 to 3411.8%

35 to 4411.5%

45 to 5411.7%

55 to 6413.7%

65 to 7411.6%

75 and over7.3%

	Count	Share
Under 5	1,357	6.6%
5 to 17	3,509	17.1%
18 to 24	1,776	8.6%
25 to 34	2,436	11.8%
35 to 44	2,370	11.5%
45 to 54	2,402	11.7%
55 to 64	2,823	13.7%
65 to 74	2,385	11.6%
75 and over	1,507	7.3%

Race & ethnicity

	Count	Share
White (non-Hispanic)	10,367	50.4%
Black or African American	8,862	43.1%
American Indian & Alaska Native	30	0.1%
Asian	106	0.5%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	91	0.4%
Two or more races	533	2.6%
Hispanic or Latino (any race)	576	2.8%

Educational attainment (age 25+)

No high school diploma19.2%

High school graduate40.4%

Some college or associate's27.5%

Bachelor's degree8.3%

Graduate or professional degree4.6%

	Count	Share
No high school diploma	2,671	19.2%
High school graduate	5,629	40.4%
Some college or associate's	3,835	27.5%
Bachelor's degree	1,154	8.3%
Graduate or professional degree	634	4.6%

Commute to work

Mean travel time to work: 28 min

Drove alone81.1%

Carpooled11.9%

Public transit2.4%

Walked0.5%

Bicycle0.2%

Worked from home3.1%

Other means0.8%

How workers get to work

	Count	Share
Drove alone	6,719	81.1%
Carpooled	984	11.9%
Public transit	202	2.4%
Walked	41	0.5%
Bicycle	17	0.2%
Worked from home	256	3.1%
Other means	69	0.8%

Travel time

	Count	Share
Under 15 min	2,645	32.9%
15 to 29 min	1,839	22.9%
30 to 44 min	1,797	22.4%
45 to 59 min	903	11.2%
60+ min	848	10.6%

Households

Average household size: 2.49
Poverty rate: 28.5% (5,750 of 20,153)

	Count	Share
Family households	4,986	61.5%
Nonfamily households	3,121	38.5%

Housing

Median year structure built: 1984

Occupancy

	Count	Share
Occupied	8,107	81.9%
Vacant	1,794	18.1%

Tenure (of occupied units)

	Count	Share
Owner-occupied	5,758	71.0%
Renter-occupied	2,349	29.0%

1-unit, detached57.7%

1-unit, attached0.7%

2 to 4 units5.8%

5 to 19 units2.3%

20 or more units1.1%

Mobile home & other32.5%

Units in structure

	Count	Share
1-unit, detached	5,708	57.7%
1-unit, attached	68	0.7%
2 to 4 units	573	5.8%
5 to 19 units	230	2.3%
20 or more units	109	1.1%
Mobile home & other	3,213	32.5%

Geography

County GEOID: 45011
State: South Carolina
Land area: 548 sq mi
Water area: 8.88 sq mi
Center point: 33.2606, -81.4342