Marion County SC Information


Marion County Subdivisions

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


Total Population 32,395
Population in Households 32,192
Population in Familes 26,776
Population in Group Qrtrs 203
Population Density1 66
Diversity Index2 55


Median Household Income $32,728
Average Household Income $47,429
Per Capita Income $18,968


Total Housing Units 14,953 (100%)
Owner Occupied HU 9,277 (62.0%)
Renter Occupied HU 3,603 (24.1%)
Vacant Housing Units 2,073 (13.9%)
Median Home Value $90,744
Average Home Value $121,836


Total Households 12,880
Average Household Size 2.5
Family Households 8,621
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 -0.25% -0.26%
Households -0.17% -0.21%
Families -0.36% -0.33%
Median Household Income   1.7%
Per Capita Income   1.72%


Marion County SC - Peer Comparisons by Rank and Percentile

The table below compares Marion 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 # 31 35th
Population Density # 26 46th
Diversity Index # 16 65th
Median Household Income # 40 15th
Per Capita Income # 38 20th

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