Barnwell County SC Information


Barnwell County Subdivisions

Barnwell County SC Data & Demographics (As of July 1, 2018)


Total Population 21,889
Population in Households 21,604
Population in Familes 17,818
Population in Group Qrtrs 285
Population Density1 40
Diversity Index2 55


Median Household Income $37,000
Average Household Income $50,228
Per Capita Income $20,108


Total Housing Units 10,484 (100%)
Owner Occupied HU 5,955 (56.8%)
Renter Occupied HU 2,708 (25.8%)
Vacant Housing Units 1,821 (17.4%)
Median Home Value $78,938
Average Home Value $108,942


Total Households 8,663
Average Household Size 2.49
Family Households 5,772
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population -0.4% -0.71%
Households -0.38% -0.7%
Families -0.58% -0.82%
Median Household Income   1.36%
Per Capita Income   1.73%


Barnwell County SC - Peer Comparisons by Rank and Percentile

The table below compares Barnwell County to the other 46 counties and county equivalents in South Carolina by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 40 15th
Population Density # 38 20th
Diversity Index # 17 67th
Median Household Income # 32 33rd
Per Capita Income # 32 33rd

Additional comparisons and rankings can be made with a VERY EASY TO USE South Carolina Census Data Comparison Tool.