Sumter County, South Carolina Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 15th-largest in South Carolina

The population of Sumter County, South Carolina is 104,853 as of the 2023 American Community Survey, making it the 15th-largest county in South Carolina. The median household income is $55,990, the median home value is $159,500, and the median age is 37.3.

The population of Sumter County has declined 2.6% since 2010 (107,610 → 104,776), a -0.19% annualized rate.

Sumter County within South Carolina · Source: US Census TIGER/Line via us-atlas

104,853

Population

-0.19%

Annual growth

158

People / sq mi

$55,990

Median Income

$159,500

Median Home Value

Sumter County covers 665 sq mi of land at 157.7 people per square mile.

About Sumter County, SC

Sumter County is a county in South Carolina with a population of 104,853. It ranks #15 among counties in South Carolina by population. The median age is 37.3, younger than the national median. The population is 48.3% male and 51.7% female.

The median household income in Sumter County is $55,990, below the US median of $74,580. 12.7% of residents live below the federal poverty level. Home values sit at a median of $159,500, with monthly rent averaging $1,006. The homeownership rate of 66.8% is close to the national rate of 64.8%.

Educational attainment in Sumter County reflects 23.2% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 4.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 22.9 minutes each way.

Sumter County Population History (2010-2024)

The county of Sumter County had a population of 107,610 in 2010 and 104,776 in 2024, a -2.6% growth over 14 years. The peak was 107,944 in 2012. Average annual growth rate: -0.19%.

104,776

Population (2024)

107,610

Population (2010)

107,944

Peak (2012)

-0.19%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	107,610	-	-	estimate
2011	107,316	-294	-0.27%	estimate
2012	107,944	+628	+0.59%	estimate
2013	107,840	-104	-0.10%	estimate
2014	107,784	-56	-0.05%	estimate
2015	107,346	-438	-0.41%	estimate
2016	107,257	-89	-0.08%	estimate
2017	106,604	-653	-0.61%	estimate
2018	106,518	-86	-0.08%	estimate
2019	106,635	+117	+0.11%	estimate
2020	105,493	-1,142	-1.07%	estimate
2021	104,879	-614	-0.58%	estimate
2022	104,068	-811	-0.77%	estimate
2023	104,410	+342	+0.33%	estimate
2024	104,776	+366	+0.35%	estimate

Race & Ethnicity

White	45.1%
Black or African American	46.2%
Asian	0.0%
Hispanic or Latino (any race)	1.3%
Two or More Races	0.0%

Age & Sex

37.3

Median Age

51.7%

Female

48.3%

Male

17.4%

Age 65+

Age Distribution

Under 5

6.5%

5–9

6.8%

10–14

6.6%

15–19

6.4%

20–24

7.4%

25–34

13.8%

35–44

11.5%

45–54

11.0%

55–59

6.4%

60–64

6.2%

65–74

10.3%

75–84

4.9%

85+

2.2%

Children (under 15): 19.9% · Seniors (65+): 17.4%

Income & Poverty

Median household income	$55,990$-10,828 vs state
Mean household income	$72,474
Per-capita income	$29,372
Poverty rate	12.7%+2.6% vs state
Unemployment rate	3.9%
Employment-to-population	49.5%

Top Industries by Employment

Professional & business services

25.1%

Manufacturing

14.0%

Finance & real estate

8.8%

Education & health care

8.1%

Construction

7.6%

Public administration

6.5%

Retail trade

5.5%

Arts, entertainment & food

5.4%

The largest employment sector in Sumter County is professional & business services, accounting for 25.1% of workers.

How residents commute

0.2%

Drive alone

1.5%

Carpool

85.0%

Public transit

4.5%

Work from home

22.9 min

Avg commute

Housing

$159,500$-77,200 vs state

Median home value

$1,006

Median rent

66.8%

Homeownership rate

47,288

Total housing units

87.1%

Occupied

12.9%

Vacant

33.2%

Renter-occupied

Social & access

89.5%

With health insurance

90.2%

With broadband internet

32.1%

Foreign-born

13.5%

Veterans (18+)

14.9%

With a disability

94.5%

Speak language other than English at home

Education

89.1%

High School+

23.2%

Bachelor's+

Largest cities in South Carolina

Charleston (152,014)Columbia (138,019)North Charleston (117,460)Mount Pleasant (92,662)Rock Hill (74,769)Greenville (71,755)Summerville (51,262)Goose Creek (46,964)Sumter (43,065)Florence (40,205)All South Carolina cities →

Other counties in South Carolina

Greenville County (537,575)Richland County (418,725)Charleston County (414,711)Horry County (368,937)Spartanburg County (338,096)Lexington County (300,370)York County (288,559)Berkeley County (238,723)Anderson County (207,218)Beaufort County (192,123)All South Carolina counties →

Part of South Carolina

South Carolina demographic profile All South Carolina data →

Metro areas in South Carolina

Charlotte (2,712,818)Greenville (945,301)Columbia (839,868)Charleston (817,756)Augusta (618,022)Myrtle Beach (368,937)Spartanburg (365,086)Hilton Head Island (222,781)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Sumter County, South Carolina has a population of 104,853 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 15th-largest county in South Carolina. Population density is 158 people per square mile.

The population of Sumter County has declined 2.6% since 2010 (107,610 → 104,776), a -0.19% annualized rate.

The median household income in Sumter County, South Carolina is $55,990, with mean (average) household income of $72,474 and per-capita income of $29,372. 12.7% of residents live below the federal poverty level.

In Sumter County, the largest racial and ethnic groups are Black or African American (46.2%), White (45.1%), Hispanic or Latino (1.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Sumter County, South Carolina is 37.3 years. Residents are 51.7% female and 48.3% male.

The median home value in Sumter County is $159,500 and median monthly rent is $1,006. 66.8% of occupied housing units are owner-occupied. The county has 47,288 total housing units, 12.9% of which are vacant.

The largest employment sector in Sumter County, South Carolina is professional, scientific, and management services, employing 25.1% of workers. The unemployment rate is 3.9%.

Charleston is among the largest cities associated with Sumter County, South Carolina, with a population of 152,014.