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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/11231

11231

ZIP 11231 is in Brooklyn, New York, in Brooklyn (Kings County); area codes 347, 718, 929 and 917; Eastern time. Brooklyn has 47 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
Kings
Population
38,276
Coordinates
40.6779, -74.0052
☼ Live from 11231 — Brooklyn, NY

Weather right now

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Local time: —

Where 11231 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 11231
  • 🔢 Type 11231 into a pocket calculator and turn it upside down: IEZII — not quite a word, sorry.
  • ➕ As a number, 11,231 = 11 × 1021. Its digits add up to 8, a total 251 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10101111011111
  • 🏠 Its numerical neighbours: 11230 (Brooklyn, NY, 4 mi away) and 11232 (Brooklyn, NY, 1 mi away).
  • 🔄 Backwards, 11231 becomes 13211 — and that is a real ZIP code: Syracuse, NY, 200 miles away.
  • 👥 10 other ZIP codes are made of exactly the same digits (11213, 12131, 13112, 13121, 13211, 21113, …). The farthest-flung twin is 32111 in Candler, FL, 920 miles away.
  • 🧭 Farther north than 63% of all ZIP codes, and farther east than 90%.
  • 🎯1,293 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 11231 and you would come out at 40.68°S, 105.99°E — 815 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 05m of daylight. Shortest: 9h 15m.
  • 📏 At 1.4 square miles of land, 11231 is bigger than 10% of ZIP codes — room for about 1.1 Central Parks.
🌙 The sky over 11231 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population38,276This ZIP38,276
Households16,783This ZIP16,783
Housing units18,294This ZIP18,294
Median age38.8This ZIP38.8New York39.8US 38.9
Median household income$139,930This ZIP$139,930New York$85,974US $80,734
Median home value$1,611,200This ZIP$1,611,200New York$423,800US $332,700
Median gross rent$2,431This ZIP$2,431New York$1,621US $1,413
Bachelor's degree or higher67.5%This ZIP67.5%
Mean commute35.8 minThis ZIP35.8 min
Population density26,860.4 / sq miThis ZIP26,860.4 / sq mi

Business and tax activity

Business establishments1,320This ZIP1,320
Employees12,186This ZIP12,186
Annual payroll$709,366,000This ZIP$709,366,000
Tax returns filed16,900This ZIP16,900
Total adjusted gross income$3,669,958,000This ZIP$3,669,958,000

Land area

Land area1.43 sq miThis ZIP1.43 sq mi
Water area0.03 sq miThis ZIP0.03 sq mi

Other place names in 11231

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

ZIP codes near 11231

ZIPCityDistance
10004 New York, NY 1.0 mi
11201 Brooklyn, NY 1.4 mi
11217 Brooklyn, NY 1.4 mi
11215 Brooklyn, NY 1.4 mi
11232 Brooklyn, NY 1.5 mi
10041 New York, NY 1.8 mi
10005 New York, NY 2.0 mi
10270 New York, NY 2.0 mi
11238 Brooklyn, NY 2.1 mi
10271 New York, NY 2.1 mi

Find every ZIP code within 10 miles of 11231 →

Questions about this ZIP code

Where is ZIP code 11231?

11231 is in Brooklyn, New York, in Kings County, part of the New York-Newark-Jersey City, NY-NJ metropolitan area. Its published point location is 40.6779, -74.0052.

What county is 11231 in?

11231 lies in Kings County.

What area code is 11231?

Brooklyn uses area codes 347, 718, 929 and 917, from NANPA's telephone records.

What time zone is 11231 in?

11231 uses America/New_York.

How many people live in 11231?

About 38,276 people live in ZIP code 11231, in 16,783 households, at 26,860.4 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 11231?

$139,930 a year, against $85,974 across New York.

What ZIP codes are near 11231?

The closest are 10004 (1 mi), 11201 (1.4 mi), 11217 (1.4 mi), 11215 (1.4 mi) and 11232 (1.5 mi).

Is 11231 a PO Box ZIP code?

11231 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “11231 ZIP Code — Brooklyn, New York.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/11231

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