Marlboro County SC Information


Marlboro County Subdivisions

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


Total Population 27,486
Population in Households 24,577
Population in Familes 20,172
Population in Group Qrtrs 2,909
Population Density1 57
Diversity Index2 61


Median Household Income $31,059
Average Household Income $44,597
Per Capita Income $17,410


Total Housing Units 12,072 (100%)
Owner Occupied HU 6,662 (55.2%)
Renter Occupied HU 3,344 (27.7%)
Vacant Housing Units 2,066 (17.1%)
Median Home Value $70,727
Average Home Value $95,598


Total Households 10,006
Average Household Size 2.46
Family Households 6,537
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 -0.62% -0.65%
Households -0.45% -0.68%
Families -0.66% -0.82%
Median Household Income   1.05%
Per Capita Income   1.41%


Marlboro County SC - Peer Comparisons by Rank and Percentile

The table below compares Marlboro 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 # 36 24th
Population Density # 30 37th
Diversity Index # 4 93rd
Median Household Income # 42 11th
Per Capita Income # 42 11th

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