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zipcodes.pro — ZIP/31561

31561

ZIP 31561 is Sea Island, Georgia, in Glynn County; area code 912; Eastern time.

Type
Standard
Time zone
America/New_York
County
Glynn
Population
96
Coordinates
31.2091, -81.3099
☼ Live from 31561 — Sea Island, GA

Weather right now

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Local time: —

Where 31561 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 31561
  • 🔢 Type 31561 into a pocket calculator and turn it upside down: IgSIE — not quite a word, sorry.
  • ➕ As a number, 31,561 = 37 × 853. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111101101001001
  • 🏠 Its numerical neighbours: 31560 (Screven, GA, 47 mi away) and 31562 (Saint George, GA, 69 mi away).
  • 🔄 Backwards, 31561 becomes 16513, which is not a ZIP code at all.
  • 👥 30 other ZIP codes are made of exactly the same digits (11356, 11365, 11563, 13156, 13165, 13615, …). The farthest-flung twin is 56311 in Barrett, MN, 1,281 miles away.
  • 🧭 Farther south than 90% of all ZIP codes, and farther east than 69%.
  • 🎯1,136 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 31561 and you would come out at 31.21°S, 98.69°E — 1,011 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 11m of daylight. Shortest: 10h 07m.
  • 📏 At 4.7 square miles of land, 31561 is bigger than 18% of ZIP codes — room for about 3.6 Central Parks.
🌙 The sky over 31561 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population96This ZIP96
Households40This ZIP40
Housing units373This ZIP373
Median age69.6This ZIP69.6Georgia37.6US 38.9
Median household income$250,000+This ZIP$250,000+Georgia$77,353US $80,734
Median home value$2,000,000+This ZIP$2,000,000+Georgia$303,300US $332,700
Bachelor's degree or higher100.0%This ZIP100.0%
Population density20.3 / sq miThis ZIP20.3 / sq mi

Business and tax activity

Business establishments11This ZIP11
Employees1,200This ZIP1,200
Annual payroll$74,839,000This ZIP$74,839,000

Land area

Land area4.72 sq miThis ZIP4.72 sq mi
Water area4.17 sq miThis ZIP4.17 sq mi

ZIP codes near 31561

ZIPCityDistance
31522 Saint Simons Island, GA 3.8 mi
31524 Brunswick, GA 9.9 mi
31520 Brunswick, GA 10.7 mi
31527 Jekyll Island, GA 11.2 mi
31521 Brunswick, GA 11.5 mi
31305 Darien, GA 11.7 mi
31327 Sapelo Island, GA 14.8 mi
31525 Brunswick, GA 14.9 mi
31319 Meridian, GA 17.6 mi
31523 Brunswick, GA 18.1 mi

Find every ZIP code within 10 miles of 31561 →

Questions about this ZIP code

Where is ZIP code 31561?

31561 is in Sea Island, Georgia, in Glynn County, part of the Brunswick-St. Simons, GA metropolitan area. Its published point location is 31.2091, -81.3099.

What county is 31561 in?

31561 lies in Glynn County.

What area code is 31561?

Sea Island uses area code 912, from NANPA's telephone records.

What time zone is 31561 in?

31561 uses America/New_York.

How many people live in 31561?

About 96 people live in ZIP code 31561, in 40 households, at 20.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 31561?

$250,000+ a year, against $77,353 across Georgia.

What ZIP codes are near 31561?

The closest are 31522 (3.8 mi), 31524 (9.9 mi), 31520 (10.7 mi), 31527 (11.2 mi) and 31521 (11.5 mi).

Is 31561 a PO Box ZIP code?

31561 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “31561 ZIP Code — Sea Island, Georgia (Glynn County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/31561

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