Zip Code 31522 — Saint Simons Island, GA
31522 is a ZIP Code associated with Saint Simons Island, GA, located within Glynn. 31522 ranks #3 out of 7 ZIP codes in Glynn County by population (and #224 out of 750 in GA). The area supports an estimated population of 17,780 residents across Data Pending housing units, with a population density of 128.6 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (31.235950, -81.355280)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 31522 |
| Primary City | Saint Simons Island |
| State / Province | GA |
| County | Glynn |
| Total Population | 17,780 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 128.6 people/sq mi |
| Timezone | America/New_York |
How 31522 Compares
| Metric | ZIP 31522 | Glynn County | GA State Average |
|---|
| Population | 17,780 | 85,286 (Total) | 10,940,417 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 128.6 /sq mi | -- | -- |
| County Pop Rank | #3 of 7 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →