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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/31405

31405

ZIP 31405 is in Savannah, Georgia, in Chatham County; area code 912; Eastern time. Savannah has 18 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
Chatham
Metro area
Savannah, GA
Population
40,764
Coordinates
32.0394, -81.1792
☼ Live from 31405 — Savannah, GA

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Where 31405 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 31405
  • 🔢 Type 31405 into a pocket calculator and turn it upside down: SOhIE — not quite a word, sorry.
  • ➕ As a number, 31,405 = 5 × 11 × 571. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111101010101101
  • 🏠 Its numerical neighbours: 31404 (Savannah, GA, 7 mi away) and 31406 (Savannah, GA, 7 mi away).
  • 🔄 Backwards, 31405 becomes 50413, which is not a ZIP code at all.
  • 👥 64 other ZIP codes are made of exactly the same digits (01354, 01453, 01534, 01543, 03451, 04351, …). The farthest-flung twin is 34051 in FPO AA, a military post office, 1,359 miles away.
  • 🧭 Farther south than 88% of all ZIP codes, and farther east than 70%.
  • 🎯1,109 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 31405 and you would come out at 32.04°S, 98.82°E — 997 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 15m of daylight. Shortest: 10h 03m.
  • 📏 At 31.2 square miles of land, 31405 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
🌙 The sky over 31405 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population40,764This ZIP40,764
Households15,185This ZIP15,185
Housing units17,059This ZIP17,059
Median age35.5This ZIP35.5Georgia37.6US 38.9
Median household income$65,710This ZIP$65,710Georgia$77,353US $80,734
Median home value$338,200This ZIP$338,200Georgia$303,300US $332,700
Median gross rent$1,492This ZIP$1,492Georgia$1,393US $1,413
Bachelor's degree or higher36.1%This ZIP36.1%
Mean commute20.0 minThis ZIP20.0 min
Population density1,305.1 / sq miThis ZIP1,305.1 / sq mi

Business and tax activity

Business establishments1,350This ZIP1,350
Employees21,472This ZIP21,472
Annual payroll$1,200,384,000This ZIP$1,200,384,000
Tax returns filed15,880This ZIP15,880
Total adjusted gross income$1,288,616,000This ZIP$1,288,616,000

Land area

Land area31.23 sq miThis ZIP31.23 sq mi
Water area0.49 sq miThis ZIP0.49 sq mi

Other place names in 31405

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 31405

ZIPCityDistance
31409 Savannah, GA 2.6 mi
31415 Savannah, GA 4.2 mi
31408 Savannah, GA 4.5 mi
31419 Savannah, GA 5.0 mi
31401 Savannah, GA 5.4 mi
31402 Savannah, GA 5.6 mi
31412 Savannah, GA 5.6 mi
31322 Pooler, GA 6.2 mi
31421 Savannah, GA 6.8 mi
31406 Savannah, GA 6.9 mi

Find every ZIP code within 10 miles of 31405 →

Questions about this ZIP code

Where is ZIP code 31405?

31405 is in Savannah, Georgia, in Chatham County, part of the Savannah, GA metropolitan area. Its published point location is 32.0394, -81.1792.

What county is 31405 in?

31405 lies in Chatham County.

What area code is 31405?

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

What time zone is 31405 in?

31405 uses America/New_York.

How many people live in 31405?

About 40,764 people live in ZIP code 31405, in 15,185 households, at 1,305.1 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 31405?

$65,710 a year, against $77,353 across Georgia.

What ZIP codes are near 31405?

The closest are 31409 (2.6 mi), 31415 (4.2 mi), 31408 (4.5 mi), 31419 (5 mi) and 31401 (5.4 mi).

Is 31405 a PO Box ZIP code?

31405 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “31405 ZIP Code — Savannah, Georgia (Chatham County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/31405

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