• county
  • FIPS 45003
  • Largest town: Aiken

Aiken County, South Carolina

Aiken County had 179,245 residents in the Census Vintage 2024 estimate, on 1,070.7 square miles of land. It ranks 11th of 46 in South Carolina by population and 4th by land area.

Population
179,245
#11 of 46 in South Carolina · #389 in US
Area
1,070.7 sq mi
#4 of 46 in South Carolina · #601 in US
Density
167 / sq mi
#15 of 46 in South Carolina · #637 in US
Median household income
$67,769
#12 of 46 in South Carolina · #1,143 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Aiken County within South Carolina. Pin: Columbia.

Measure from here

Tools and pages that start from Aiken County

Aiken County population, land area and income

Aiken County had 179,245 residents in the Census Vintage 2024 estimate, on 1,070.7 square miles of land. It ranks 11th of 46 in South Carolina by population and 4th by land area. That works out to 167.4 people per square mile, 1.7 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in South Carolina has 60,098 residents, so Aiken County is 3.0 times that size.

Its SAIPE 2023 median household income of $67,769 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

179,245

3144th1st

389th of 3,144 (US)

Land area

1,071 sq mi

3144th1st

601st of 3,144 (US)

Density

167.4 / sq mi

3144th1st

637th of 3,144 (US)

Median household income

$67,769

3143rd1st

1143rd of 3,143 (US)

Rank within South Carolina (46)

Population

179,245

46th1st

11th of 46 (SC)

Land area

1,071 sq mi

46th1st

4th of 46 (SC)

Density

167.4 / sq mi

46th1st

15th of 46 (SC)

Median household income

$67,769

46th1st

12th of 46 (SC)

How Aiken County's population changed since 2020

Aiken County gained 10,071 residents between the July 2020 and July 2024 estimates, a rise of 6.0%. That ranks 14th of 46 in South Carolina for growth. The median South Carolina county changed by +2.9%, and the state as a whole by +6.8%.

Since the April 2020 estimates base, Aiken County recorded 8,884 births and 9,281 deaths, a natural change of -397. Net international migration added +956 and net domestic migration, people moving to or from other US counties, came to +9,785. The largest single component was domestic migration, which added 9,785 people.

169.2k2020171.3k2021174.1k2022177.0k2023179.2k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
8,884
Deaths
9,281
Net international migration
+956
Net domestic migration
+9,785
Change, July 2023 to July 2024
+2,211

Where Aiken County is

The Census internal point of Aiken County is at 33.550000, -81.633000. It sits in UTM zone 17N. The map shades South Carolina's 46 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Aiken County outlined. Dots are towns of 1,000+ people with residents in it.

Union County: -1.9%Chester County: +0.1%Lee County: -3.6%Bamberg County: -2.9%Barnwell County: -0.5%Horry County: +16.9%Allendale County: -4.8%Chesterfield County: +2.9%Clarendon County: +0.6%Edgefield County: +14.7%Georgetown County: +4.0%McCormick County: +4.8%Pickens County: +4.9%Richland County: +3.6%Newberry County: +3.9%Spartanburg County: +12.1%Sumter County: -0.7%Marlboro County: -3.8%Berkeley County: +14.2%Charleston County: +5.1%Laurens County: +4.3%Saluda County: +2.9%Anderson County: +6.4%Dorchester County: +7.8%Dillon County: -2.5%Oconee County: +4.7%Beaufort County: +7.4%Cherokee County: +2.7%Greenville County: +8.2%York County: +6.7%Colleton County: +1.9%Darlington County: -0.7%Calhoun County: +1.0%Jasper County: +22.2%Marion County: -2.5%Fairfield County: -2.4%Hampton County: -1.9%Lancaster County: +15.6%Orangeburg County: -1.0%Aiken County: +6.0%Greenwood County: +0.9%Florence County: +0.9%Abbeville County: +1.4%Lexington County: +6.4%Kershaw County: +9.3%Williamsburg County: -3.4%
Change 2020 to 2024
  1. < -1.9%
  2. < +1.0%
  3. < +4.3%
  4. < +7.4%
  5. ≥ +7.4%
no data

Orange pin: Aiken County internal point. Dark pin: Columbia.

Internal point

Decimal
33.550000, -81.633000
DMS
33°33'0.00"N 81°37'58.80"W
UTM
17N 441236.9E 3712442.1N
Geohash
djvyy7sdv
Plus code
865WH928+2R

Towns in Aiken County

5 incorporated places of 1,000+ people have residents in Aiken County, 66,010 people together, or 37% of the county. Each figure counts only the part of the town inside Aiken County; towns marked "part" extend into another county. The largest is Aiken with 32,694.

  1. 01Aiken32,694
  2. 02North Augusta (part)26,101
  3. 03Burnettown3,226
  4. 04New Ellenton2,354
  5. 05Jackson1,635
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Aiken County

The Census 2024 county adjacency file lists 7 neighbors for Aiken County, including 2 across a state line. The most populous is Lexington County, SC, with 313,774 residents. Distances run between Census internal points in a straight line.

Distance to Columbia and the nearest big city

Columbia is 46.4 miles NE of Aiken County's internal point in a straight line. The nearest place of 100,000 or more is Augusta-Richmond County, GA (population 201,737), 28.4 miles away. The nearest place of 10,000 or more is Aiken, SC (population 32,694), 5.5 miles away.

Aiken County FIPS code

The FIPS code of Aiken County is 45003: state code 45 for South Carolina plus county code 003. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $67,769.

Questions people ask

What is the population of Aiken County, South Carolina?

The Census Vintage 2024 estimate for July 1, 2024 is 179,245. That is up 10,071 people (6.0%) from the July 2020 estimate of 169,174.

What is the FIPS code of Aiken County?

45003. The first two digits (45) are South Carolina; the last three (003) identify the county.

What is the largest town in Aiken County?

Aiken, with 32,694 residents inside Aiken County in 2024.

Which counties border Aiken County?

7 county-equivalents border it in the Census 2024 adjacency file: Lexington County, SC; Richmond County, GA; Orangeburg County, SC; Edgefield County, SC; Burke County, GA; Barnwell County, SC; Saluda County, SC.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.