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ZIP Code Database - Facts & Stats

Data Last Updated: September 1, 2021

ZIP Codes for City of Sea Island, GA

Sea Island, GA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 31561P.O. BoxGlynn298912

Timezone(s):Eastern (GMT -05:00)
Counties:GLYNN, GA
Population:298 (More Details)
Male Population:132
Female Population:166
Median Age:68
ZIP Codes:1
Area Codes:1
Total Area:585 square miles (county)
Land Area:420 square miles (county)
Water Area:165 square miles (county)

Sea Island, GA Demographic Information *

There is no Census data for the city of SEA ISLAND, GA. We have pulled information for the ZIP Code 31561 instead.
Total population298
Male population132
Female population166
Median age (years)67.7
White Population295
Black Population0
Indian Population0
Asian Population1
Hawaiian Population0
Hispanic Population2
Median age (Male)68.2
Median age (Female)67.3
Total households158
Family households (families)112
Average household size1.89
Average family size2.23
Total housing units870
* Demographic data is based on 2010 Census.

Sea Island, GA Other Information

  • Located in GLYNN County, Georgia
  • Sea Island, GA is also known as:

17 Cities within 30 miles of Sea Island, GA Products


  1. U.S. Postal Service [Last Updated: 9/1/2021],
  2. Internal Data Creation [Last Updated: 9/1/2021],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],