Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/90031

90031

ZIP 90031 is in Los Angeles, California, in Los Angeles County; area codes 213, 323 and 738; Pacific time. Los Angeles has 94 ZIP codes in all.

Type
Standard
Time zone
America/Los_Angeles
County
Los Angeles
Population
36,127
Coordinates
34.0842, -118.2086
☼ Live from 90031 — Los Angeles, CA

Weather right now

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NEXRAD radar
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Local time: —

Where 90031 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 90031
  • 🔢 Type 90031 into a pocket calculator and turn it upside down: IEOOG — not quite a word, sorry.
  • ➕ 90031 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10101111110101111
  • 🏠 Its numerical neighbours: 90030 (Los Angeles, CA, 3 mi away) and 90032 (Los Angeles, CA, 1 mi away).
  • 🔄 Backwards, 90031 becomes 13009, which is not a ZIP code at all.
  • 👥 31 other ZIP codes are made of exactly the same digits (00913, 00931, 01039, 01093, 01903, 01930, …). The farthest-flung twin is 09031 in APO AE, a military post office, 5,840 miles away.
  • 🧭 Farther south than 78% of all ZIP codes, and farther west than 91%.
  • 🎯1,151 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 90031 and you would come out at 34.08°S, 61.79°E — 991 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 26m of daylight. Shortest: 9h 53m.
  • 📏 At 3.5 square miles of land, 90031 is bigger than 16% of ZIP codes — room for about 2.7 Central Parks.
🌙 The sky over 90031 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population36,127This ZIP36,127
Households12,313This ZIP12,313
Housing units12,825This ZIP12,825
Median age39.8This ZIP39.8California37.9US 38.9
Median household income$63,090This ZIP$63,090California$99,122US $80,734
Median home value$782,300This ZIP$782,300California$734,700US $332,700
Median gross rent$1,531This ZIP$1,531California$2,036US $1,413
Bachelor's degree or higher24.1%This ZIP24.1%
Mean commute29.2 minThis ZIP29.2 min
Population density10,322.0 / sq miThis ZIP10,322.0 / sq mi

Business and tax activity

Business establishments652This ZIP652
Employees10,194This ZIP10,194
Annual payroll$489,901,000This ZIP$489,901,000
Tax returns filed16,100This ZIP16,100
Total adjusted gross income$897,954,000This ZIP$897,954,000

Land area

Land area3.50 sq miThis ZIP3.50 sq mi
Water area0.07 sq miThis ZIP0.07 sq mi

Other place names in 90031

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

ZIP codes near 90031

ZIPCityDistance
90032 Los Angeles, CA 1.4 mi
90090 Dodgertown, CA 2.1 mi
90065 Los Angeles, CA 2.1 mi
90012 Los Angeles, CA 2.1 mi
90042 Los Angeles, CA 2.3 mi
90033 Los Angeles, CA 2.3 mi
90009 Los Angeles, CA 3.0 mi
90030 Los Angeles, CA 3.0 mi
90050 Los Angeles, CA 3.0 mi
90051 Los Angeles, CA 3.0 mi

Find every ZIP code within 10 miles of 90031 →

Questions about this ZIP code

Where is ZIP code 90031?

90031 is in Los Angeles, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.0842, -118.2086.

What county is 90031 in?

90031 lies in Los Angeles County.

What area code is 90031?

Los Angeles uses area codes 213, 323 and 738, from NANPA's telephone records.

What time zone is 90031 in?

90031 uses America/Los_Angeles.

How many people live in 90031?

About 36,127 people live in ZIP code 90031, in 12,313 households, at 10,322.0 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 90031?

$63,090 a year, against $99,122 across California.

What ZIP codes are near 90031?

The closest are 90032 (1.4 mi), 90090 (2.1 mi), 90065 (2.1 mi), 90012 (2.1 mi) and 90042 (2.3 mi).

Is 90031 a PO Box ZIP code?

90031 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “90031 ZIP Code — Los Angeles, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/90031

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