Sea Island, GA
Single-footprint Census roll-up for Sea Island, GA: 1 USPS ZIP, population 298. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.
U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage
ACS city ledger plate
Sheet SEA-ISLAND-GA · Sea Island, GA 1 ZIPs · 298 pop · #96/25278 · Glynn County
INC-TOP · RANK-TOP · ABOVE-PEER · BOOK-ONE · OWN-HIGH · POP-VILLAGE · SPREAD-UNK · HOME-TOP
- INC-TOP $250,001
- RANK-TOP #96/25278
- ABOVE-PEER over Saint Simons Isl
- BOOK-ONE 1 ZIP
- OWN-HIGH 100% owners
- POP-VILLAGE 298
- SPREAD-UNK Single-ZIP book
- HOME-TOP $2,000,001
Nearest income peer: Saint Simons Island, GA ( $141,369 income $)
Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.
Income neighbourhood around Sea Island
Lowest/highest poles plus county-sharing cities nearest Sea Island on average ZIP median household income. Full ladder: /cities.
- Brunswick · lowest $66,184
Brunswick · lowest
$66,184 median HH income
- Saint Simons I · near
Saint Simons I · near
$108,632 median HH income
- Sea Island · this city · highest
Sea Island · this city · highest
$250,001 median HH income
What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.
National city placement
According to ACS 5-Year Estimates, Sea Island, GA sits among US cities with a top-decile household income, on a village-scale population base, across a single-ZIP footprint.
- Top 1%
- household income vs 25,278 US cities
- 298
- city population (Census)
- 1
- USPS ZIP codes covered
- $250,000+
- avg ZIP median income
Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.
High-income footprint on only 1 ZIP: the city page and the ZIP page nearly coincide. Headline income $250,000+ and home value $2,000,000+ should be read as near-neighborhood numbers ; bachelor's attainment averages 100.0%.
Owner-occupancy here runs high (100.0%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.
Within Georgia, Alpharetta is the closest lower-income city by average ZIP household income. Its 4 ZIP footprint is the immediate statewide comparison for Sea Island.
Population concentration
Sea Island's single ZIP 31561 carries the town
Sea Island is published as a single USPS ZIP. Code 31561 is the entire residential footprint (298 ACS residents), so the city page and the ZIP page tell the same household story, open that ZIP for income, tenure, and commute detail.
Census ZBP business roll-up
Dense ZBP book packed into Sea Island's one ZIP
Citywide ZBP: 11 establishments, 1,200 employees , annual payroll $74,839k (~37 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 31561 (11 units) .
ZIP Codes in Sea Island, GA
These ZIP codes sit in Glynn County, which covers 7 ZIP codes in all; 1 of them fall in Sea Island. See the Glynn County roll-up →
No other city sharing Glynn County reports a higher average ZIP median income than Sea Island. Brunswick and Saint Simons Island sit below it, so a household comparing this county on income alone starts here. Brunswick marks the far end of that range at $66,184, 74% below Sea Island.
| ZIP Code | Population | Median income | Establishments | Density |
|---|---|---|---|---|
| 31561 | 298 | $250,000+ | 11 | 24 |
Sea Island roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Sea Island, .