Seabrook Island, SC Profile: Facts & Data


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Seabrook Island, South Carolina - Basic Facts

The Town of Seabrook Island had a population of 1,903 as of July 1, 2018. Seabrook Island ranks in the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in South Carolina. See peer rankings below.

The primary coordinate point for Seabrook Island is located at latitude 32.5917 and longitude -80.1866 in Charleston County. The formal boundaries for the Town of Seabrook Island (see map below) encompass a land area of 5.98 sq. miles and a water area of 1.02 sq. miles. Charleston County is in the Eastern time zone (GMT -5). The elevation is 7 feet.

The Town of Seabrook Island (GNIS ID: 2407303) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

South Carolina is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Town of Seabrook Island is located within Kiawah Island-Seabrook Island Division of Charleston County.

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  1. Seabrook Island 2018 Demographic Data
  2. Growth Rates for Seabrook Island (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 - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Seabrook Island, SC Data & Demographics (As of July 1, 2018)


Total Population 1,903
Population in Households 1,903
Population in Familes 1,555
Population in Group Qrtrs 0
Population Density2 318
Diversity Index3 8


Median Household Income $114,938
Average Household Income $174,568
Per Capita Income $92,919


Total Housing Units 2,369 (100%)
Owner Occupied HU 912 (38.5%)
Renter Occupied HU 102 ( 4.3%)
Vacant Housing Units 1,356 (57.2%)
Median Home Value $901,178
Average Home Value $1,029,748


Total Households 1,013
Average Household Size 1.88
Family Households 704
Average Family Size 2
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. 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.


2010-2018 2018-2023
Population 1.28% 1.2%
Households 1.21% 1.16%
Families 1.03% 1.03%
Median Household Income   1.8%
Per Capita Income   2.13%

Seabrook Island, SC - Peer Comparisons by Rank and Percentile

The table below compares Seabrook Island to the other 396 incorporated cities, towns and CDPs 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 # 192 52nd
Population Density # 285 28th
Diversity Index # 392 1st
Median Household Income # 4 99th
Per Capita Income # 2 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

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