Wilmington Island, GA Profile: Facts & Data


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Wilmington Island, Georgia - Basic Facts

The Wilmington Island Census Designated Place had a population of 15,186 as of July 1, 2020. Wilmington Island ranks in the upper quartile for Population Density and the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Georgia. See peer rankings below.

The primary coordinate point for Wilmington Island is located at latitude 32.0035 and longitude -80.9737 in Chatham County. The formal boundaries for the Wilmington Island Census Designated Place encompass a land area of 8.26 sq. miles and a water area of 1.27 sq. miles. Chatham County is in the Eastern time zone (GMT -5). The elevation is 10 feet.

The Wilmington Island Census Designated Place (GNIS ID: 2403033) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Georgia is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Wilmington Island Census Designated Place is located within Tybee Island-Wilmington Island Division of Chatham County.


Wilmington Island, GA Data & Demographics (As of July 1, 2020)


Total Population 15,186 (100%)
Population in Households 15,179 (100.0%)
Population in Families 12,158 (80.1%)
Population in Group Quarters1 7 ( 0.0%)
Population Density 1,829
Diversity Index2 27


Median Household Income $80,802
Average Household Income $101,970
% of Income for Mortgage4 15%
Per Capita Income $42,901
Wealth Index5 124


Total HU (Housing Units) 6,901 (100%)
Owner Occupied HU 4,666 (67.6%)
Renter Occupied HU 1,723 (25.0%)
Vacant Housing Units 512 ( 7.4%)
Median Home Value $283,179
Average Home Value $366,813
Housing Affordability Index3 158


Total Households 6,389
Average Household Size 2.38
Family Households 4,136
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  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 races 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.
  3. 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.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. 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.


2010-2020 2020-2025
Population 0.03% 0.11%
Households 0.02% 0.1%
Families -0.22% -0.11%
Median Household Income   0.95%
Per Capita Income   2.19%
Owner Occupied HU   0.09%


Wilmington Island, GA - Peer Comparisons by Rank and Percentile

The table below compares Wilmington Island to the other 625 incorporated cities, towns and CDPs in Georgia by rank and percentile using July 1, 2020 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 # 82 87th
Population Density # 71 89th
Median Household Income # 38 94th
Housing Affordability Index # 142 23rd
Per Capita Income # 34 95th
Diversity Index # 548 12th

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

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