Sullivans Island, SC Profile: Facts, Map & Data


Sullivans Island Local Links & Resources:
Hotels | Resources | ALL Sullivans Island Content

Also See: Sullivans Island, SC ZIP Codes & ZIP Code Maps | Local Area Photos

Sullivans Island, South Carolina - Basic Facts

The Town of Sullivan's Island had a population of 1,838 as of July 1, 2015. Sullivans 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 Sullivans Island is located at latitude 32.7709 and longitude -79.8311 in Charleston County. The formal boundaries for the Town of Sullivan's Island (see map below) encompass a land area of 2.5 sq. miles and a water area of 0.94 sq. miles. Charleston County is in the Eastern time zone (GMT -5). The elevation is 7 feet.

The Town of Sullivan's Island (GNIS ID: 2406679) 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 Sullivan's Island is located within Mount Pleasant Division of Charleston County.

Beneath the boundary map are tables with Sullivans Island population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2015.

Alternate Unofficial Names for Sullivans Island: Moultrieville, Sullivan's Island.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


Town of Sullivan's Island, SC Boundary Map

Also See: BIG Map | Driving Directions | SC Congressional Districts
Boundary Maps: Mount Pleasant Division | Charleston County | South Carolina Counties

Search the map for:

Sullivans Island, SC Data & Demographics (As of July 1, 2015)


Total Population 1,838
Population in Households 1,838
Population in Familes 1,422
Population in Group Qrtrs 0
Population Density1 736
Diversity Index2 5


Total Households 794
Average Household Size 2.31
Family Households 494
Average Family Size 3


Total Housing Units 1,094 (100%)
Owner Occupied HU 554 (50.6%)
Renter Occupied HU 240 (21.9%)
Vacant Housing Units 300 (27.4%)
Median Home Value $1,000,001
Average Home Value $1,097,879


Median Household Income $124,438
Average Household Income $178,192
Per Capita Income $76,977
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.49% 1.07%
Households 0.71% 1.11%
Families 0.47% 0.95%
Median Household Income   0.96%
Per Capita Income   2.67%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Sullivans Island, SC - Peer Comparisons by Rank and Percentile

The table below compares Sullivans Island to the other 395 incorporated cities, towns and CDPs in South Carolina by rank and percentile using July 1, 2015 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 # 190 52nd
Population Density1 # 174 56th
Diversity Index2 # 394 1st
Median Household Income # 2 100th
Per Capita Income # 3 99th

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