Dillon County, South Carolina Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 33rd-largest in South Carolina
The population of Dillon County, South Carolina is 28,031 as of the 2023 American Community Survey, making it the 33rd-largest county in South Carolina. The median household income is $44,038, the median home value is $84,400, and the median age is 37.5.
The population of Dillon County has declined 14.0% since 2010 (32,080 → 27,577), a -1.07% annualized rate.
28,031
Population
-1.07%
Annual growth
69
People / sq mi
$44,038
Median Income
$84,400
Median Home Value
Dillon County covers 405 sq mi of land at 69.2 people per square mile.
About Dillon County, SC
In Dillon County, home values do the distinguishing — a median of $84,400. Dillon County is a county in South Carolina with a population of 28,031. It ranks #33 among counties in South Carolina by population.
Money is tight relative to the rest of US counties: the median household earns just $44,038, below the US median of $78,538. Poverty is among the highest of comparable US counties: 24.9%, above the national 12.4%. Real estate is inexpensive, with a typical home worth only $84,400, with typical rent around $692.
College credentials are comparatively rare here: just 11.7%, below the national 35.0%. Remote work is on the lower side here, at 4.4%, below the national 14.0%, and the average commute runs about 25 minutes each way.
Dillon County Population History (2010-2024)
The county of Dillon County had a population of 32,080 in 2010 and 27,577 in 2024, a -14.0% growth over 14 years. The peak was 32,080 in 2010. Average annual growth rate: -1.06%.
27,577
Population (2024)
32,080
Population (2010)
32,080
Peak (2010)
-1.06%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 32,080 |
| 2011 | 31,752 |
| 2012 | 31,529 |
| 2013 | 31,407 |
| 2014 | 31,290 |
| 2015 | 31,138 |
| 2016 | 30,695 |
| 2017 | 30,442 |
| 2018 | 30,509 |
| 2019 | 30,352 |
| 2020 | 28,280 |
| 2021 | 27,977 |
| 2022 | 27,766 |
| 2023 | 27,712 |
| 2024 | 27,577 |
Race & Ethnicity
| White | 45.3% |
| Black or African American | 45.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.9% |
| Two or More Races | 0.0% |
Age & Sex
37.5
Median Age
52.7%
Female
47.3%
Male
17.3%
Age 65+
Age Distribution
Children (under 15): 21.1% · Seniors (65+): 17.3%
Income & Poverty
| Median household income | $44,038$-22,780 vs state |
| Mean household income | $57,551 |
| Per-capita income | $23,016 |
| Poverty rate | 24.9%+14.8% vs state |
| Unemployment rate | 3.9% |
| Employment-to-population | 52.9% |
Top Industries by Employment
The largest employment sector in Dillon County is professional & business services, accounting for 21.5% of workers.
How residents commute
0.0%
Drive alone
0.3%
Carpool
79.3%
Public transit
4.4%
Work from home
25.1 min
Avg commute
Housing
$84,400$-152,300 vs state
Median home value
$692
Median rent
60.3%
Homeownership rate
12,879
Total housing units
82.2%
Occupied
17.8%
Vacant
39.7%
Renter-occupied
Social & access
85.4%
With health insurance
80.9%
With broadband internet
16.6%
Foreign-born
6.1%
Veterans (18+)
16.5%
With a disability
97.2%
Speak language other than English at home
Education
81.6%
High School+
11.7%
Bachelor's+
Largest cities in South Carolina
Other counties in South Carolina
Part of South Carolina
Metro areas in South Carolina
County rankings
Frequently Asked Questions
Dillon County, South Carolina has a population of 28,031 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 33rd-largest county in South Carolina. Population density is 69 people per square mile.
The population of Dillon County has declined 14.0% since 2010 (32,080 → 27,577), a -1.07% annualized rate.
The median household income in Dillon County, South Carolina is $44,038, with mean (average) household income of $57,551 and per-capita income of $23,016. 24.9% of residents live below the federal poverty level.
In Dillon County, the largest racial and ethnic groups are Black or African American (45.7%), White (45.3%), Hispanic or Latino (3.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Dillon County, South Carolina is 37.5 years. Residents are 52.7% female and 47.3% male.
The median home value in Dillon County is $84,400 and median monthly rent is $692. 60.3% of occupied housing units are owner-occupied. The county has 12,879 total housing units, 17.8% of which are vacant.
The largest employment sector in Dillon County, South Carolina is professional, scientific, and management services, employing 21.5% of workers. The unemployment rate is 3.9%.
Charleston is among the largest cities associated with Dillon County, South Carolina, with a population of 152,014.
Dillon County, SC Climate
Dillon County, SC has an average annual temperature of 16.9°C (62°F) and receives about 1183 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
16.9°C
Avg Temp
1183
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 6° / 43° | 97 mm |
| February | 8° / 47° | 91 mm |
| March | 12° / 54° | 111 mm |
| April | 17° / 62° | 74 mm |
| May | 21° / 70° | 93 mm |
| June | 25° / 77° | 121 mm |
| July | 27° / 80° | 141 mm |
| August | 26° / 79° | 135 mm |
| September | 23° / 74° | 90 mm |
| October | 17° / 63° | 76 mm |
| November | 12° / 54° | 72 mm |
| December | 8° / 46° | 82 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Dillon County, SC
The most comfortable months to visit Dillon County, SC are typically May, September and October, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 33°C high). The coldest is January (near 0°C low). July is usually the wettest month.
Where to stay near Dillon County
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Statewide data for South Carolina
Population, race, income, age, and trends across South Carolina
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.