Sullivans Island, SC Profile: Facts, Map & Data

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Sullivans Island, South Carolina - Basic Facts

The Town of Sullivan's Island had a population of 1,918 as of July 1, 2017. 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, 2017.

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


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Town of Sullivan's Island, SC Boundary Map



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Sullivans Island, SC Data & Demographics (As of July 1, 2017)

POPULATION

Total Population 1,918
Daytime Population: Workers 715
Daytime Population: Residents 947
Total Daytime Population (TDP) 1,662
Ratio TDP/Total Population1 0.87
Population in Households 1,918
Population in Familes 1,482
Population in Group Qrtrs 0
Population Density2 768
Diversity Index3 6
 

INCOME

Median Household Income $114,138
Average Household Income $185,074
Per Capita Income $79,221

HOUSING

Total Housing Units 1,120 (100%)
Owner Occupied HU 590 (52.7%)
Renter Occupied HU 231 (20.6%)
Vacant Housing Units 299 (26.7%)
Median Home Value $1,000,001
Average Home Value $1,049,110
 

HOUSEHOLDS

Total Households 821
Average Household Size 2.34
Family Households 507
Average Family Size 3
NOTES
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  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.

GROWTH RATE / YEAR

2010-2017 2017-2022
Population 0.95% 1.2%
Households 0.98% 1.17%
Families 0.7% 1.01%
Median Household Income   -0.12%
Per Capita Income   1.01%

Sullivans Island, SC - Peer Comparisons by Rank and Percentile

The table below compares Sullivans Island to the other 396 incorporated cities, towns and CDPs in South Carolina by rank and percentile using July 1, 2017 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 # 186 53rd
Population Density # 170 57th
Diversity Index # 395 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.

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