31561 ZIP Code, Sea Island, GA
31561 is a ZIP code in Sea Island, Georgia in Glynn County. It covers 4.7 square miles of land. The closest ZIP codes are 31522, 31524 and 31520. 96 people live here in 40 households, fewer than in most Georgia ZIP codes. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (100%). Median household income is $250,000+, well above the Georgia median of $77,353; the median age is 69.6, older than most ZIP codes.
Quick facts
- Mailing city: Sea Island, GA
- County: Glynn County
- Land area: 4.7 sq mi
- Population: 96
- Median household income: $250,000+
Key figures
| Measure | Value |
|---|---|
| Residents | 96 |
| Households | 40 |
| Median household income | $250,000+ |
| Income per person | $191,870 |
| Median age | 69.6 |
| Homeowners | 100.0% |
| Median home value | $2,000,000+ |
| Median rent | not published |
| Bachelor's degree or higher | 100.0% |
| Average commute (minutes) | not published |
| Households with kids under 18 | 27.5% |
| Moved in the past year | 0.0% |
| Below the poverty line | 0.0% |
| Broadband internet | 100.0% |
| Speak a non-English language at home | 8.3% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.0% |
| $10–15K | 0.0% |
| $15–25K | 0.0% |
| $25–35K | 0.0% |
| $35–50K | 0.0% |
| $50–75K | 0.0% |
| $75–100K | 0.0% |
| $100–150K | 27.5% |
| $150–200K | 20.0% |
| $200K+ | 52.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 0.0% |
| 10–19 | 19.8% |
| 20–24 | 0.0% |
| 25–34 | 0.0% |
| 35–44 | 0.0% |
| 45–54 | 20.8% |
| 55–64 | 0.0% |
| 65–74 | 59.4% |
| 75+ | 0.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 2.9% |
| Owned outright | 7.8% |
| Rented | 0.0% |
| Vacant | 89.3% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 67.8% |
| Townhome | 32.2% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 0.0% |
Businesses in 31561
11 business establishments with 1,200 employees (ZIP Codes Business Patterns 2023).
EDDM carrier routes
See every USPS carrier route in 31561 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 31522 — St. Simons CDP, GA (3.8 mi)
- 31524 (9.9 mi)
- 31520 — Brunswick city, GA (10.7 mi)
- 31527 — Jekyll Island CDP, GA (11.2 mi)
- 31305 — Darien city, GA (11.7 mi)
- 31327 (14.8 mi)
- 31525 — Country Club Estates CDP, GA (14.9 mi)
- 31523 — Sterling CDP, GA (18.1 mi)
Areas that include 31561
- Sea Island, GA ZIP codes — 1 ZIP code
- Glynn County ZIP codes — 8 ZIP codes
- Georgia ZIP code data
Mail every home in 31561
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 31561, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 31561 in?
- 31561 is a Sea Island, GA mailing address. None of its land lies inside a Census-defined city or community.
- What county is 31561 in?
- 31561 is in Glynn County.
- What is the population of 31561?
- About 96 people (±66), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 190.
- What is the median household income in 31561?
- $250,000+, compared with $77,353 for Georgia as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 31561?
- EDDM2GO's stored route library does not include 31561 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 31561?
- The closest, measured center to center: 31522 (3.8 mi, St. Simons), 31524 (9.9 mi), 31520 (10.7 mi, Brunswick), 31527 (11.2 mi, Jekyll Island), 31305 (11.7 mi, Darien) and 31327 (14.8 mi).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.