Glynn County, GA ZIP codes
There are 8 ZIP codes in Glynn County, GA, in 4 towns, from 31520 to 31561. The largest are 31525 (Brunswick), 31522 (Saint Simons Island) and 31520 (Brunswick).
The county seat is Brunswick.
- ZIP codes
- 8
- Towns
- 4
- County seat
- Brunswick
- County FIPS
13127- State
- Georgia
- Population
- 85,447
- Median household income
- $69,799
- Land area
- 420 sq mi
- Area code
- 912
- Metro area
- Brunswick-St. Simons
Glynn County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Glynn County ZIP codes
The ZIP codes of Glynn County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Glynn County in numbers
About 85,447 people live in Glynn County, in 35,543 households, the 30th most populous of Georgia's 159 counties. The median household income is $69,799 a year, 10% below the Georgia median of $77,353 (US: $80,734). The median owner-occupied home is valued at $301,300 (about the same as the Georgia median), and median gross rent is $1,135 a month. The median age is 43.4; 32.4% of adults 25 and over hold a bachelor's degree or higher (34.9% across Georgia); the average commute takes 20 minutes.
| Population | 85,447 |
|---|---|
| Households | 35,543 |
| Median age | 43.4 |
| Median household income | $69,799 |
| Median home value | $301,300 |
| Median gross rent | $1,135 |
| Bachelor's degree or higher | 32.4% |
| Mean commute | 20.0 min |
| Population density | 204 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Glynn County
| Town | ZIP codes | Population |
|---|---|---|
| Saint Simons Island | 1 | 17,780 |
| Brunswick | 5 | 15,307 |
| Jekyll Island | 1 | 769 |
| Sea Island | 1 | 96 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Glynn County.
Not sure you are in Glynn County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Glynn County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
31520 | Brunswick , GA | Standard | 22,313 | $40,071 | $147,500 |
31521 | Brunswick , GA | No street area | — | — | — |
31522 | Saint Simons Island , GA | Standard | 17,780 | $108,632 | $571,100 |
31523 | Brunswick , GA | Standard | 15,402 | $88,988 | $310,400 |
31524 | Brunswick , GA | Standard | 0 | — | — |
31525 | Brunswick , GA | Standard | 28,926 | $69,493 | $216,300 |
31527 | Jekyll Island , GA | Standard | 769 | — | $590,000 |
31561 | Sea Island , GA | Standard | 96 | $250,000+ | $2,000,000+ |
Cite this page
zipcodes.pro. “Glynn County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ga/county/glynn
Underlying data is public domain or openly licensed — sources, vintages and licences.