Charleston County SC Information


Charleston County Subdivisions

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  1. Charleston County 2019 Demographic Data
  2. Growth Rates forCharleston County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. South Carolina Research Tools (Easy Tools & Current Data)
  3. South Carolina Data Comparison Tool - 2019 Demographics

Charleston County SC Data & Demographics (As of July 1, 2019)


Total Population 413,135
Population in Households 402,213
Population in Familes 297,152
Population in Group Qrtrs 10,922
Population Density 451
Diversity Index1 56


Median Household Income $60,968
Average Household Income $93,926
Per Capita Income $38,762
Wealth Index3 114


Total Housing Units 197,341 (100%)
Owner Occupied HU 97,595 (49.5%)
Renter Occupied HU 72,654 (36.8%)
Vacant Housing Units 27,092 (13.7%)
Median Home Value $324,747
Housing Affordability Index2 98


Total Households 170,249
Average Household Size 2.36
Family Households 99,184
Average Family Size 3
  1. 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.
  2. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  3. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2019 2019-2024
Population 1.8% 1.75%
Households 1.8% 1.77%
Families 1.59% 1.64%
Median Household Income   3.37%
Per Capita Income   2.99%


Charleston County SC - Peer Comparisons by Rank and Percentile

The table below compares Charleston County to the other 46 counties and county equivalents in South Carolina by rank and percentile using July 1, 2019 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 # 3 96th
Population Density # 3 96th
Diversity Index # 15 70th
Median Household Income # 3 96th
Per Capita Income # 1 100th

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

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South Carolina Census Data Comparison Tool

Compare South Carolina July 1, 2019 Data
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