ZIP code 31561: Sea Island, GA
31561 is a ZIP code in Sea Island, Georgia, mainly in Glynn County, part of the Brunswick-St. Simons, GA metro area. About 96 people live here.
- Population
- 96
- Median household income
- $250,001
- Typical home value
- $4,493,700+3.6% in 12 months
- Median rent
- —gross, per month
- Median age
- 69.6
- Homeowners
- 100%of occupied homes
Shaded: ZIP code 31561's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 31561 details
| City | Sea Island |
|---|---|
| State | Georgia |
| County | Glynn County |
| Metro area | Brunswick-St. Simons, GA |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 4.7 sq mi, plus 4.2 sq mi of water |
| Population density | 20 people per sq mi |
| Bachelor's degree or higher | 100% of adults 25+ |
| Center coordinates | 31.20907, -81.30993 |
ZIP codes near 31561
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 31522 | Saint Simons Island, GA | 3.8 mi | 17,780 |
| 31524 | Brunswick, GA | 9.9 mi | 0 |
| 31520 | Brunswick, GA | 10.7 mi | 22,313 |
| 31527 | Jekyll Island, GA | 11.2 mi | 769 |
| 31521 | Brunswick, GA | 11.5 mi | — |
| 31305 | Darien, GA | 11.7 mi | 5,108 |
| 31327 | Sapelo Island, GA | 14.8 mi | 0 |
| 31525 | Brunswick, GA | 14.9 mi | 28,926 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 31561?
A typical home in ZIP code 31561 is worth about $4,493,700 (Zillow Home Value Index). The median household here earns $250,001 a year. See what buying here would cost per month, with Georgia average taxes and insurance filled in.
Monthly payment for a $4,493,700 homeWhat can a $250,001 income afford?Rental property numbers
About ZIP code 31561
What city is ZIP code 31561?
ZIP code 31561 is in Sea Island, GA, in Glynn County.
What county is ZIP code 31561 in?
31561 is mainly in Glynn County, Georgia.
What is the population of ZIP code 31561?
About 96 people live in ZIP code 31561, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 31561 in?
31561 is in Eastern Time (UTC−5). It observes daylight saving time.