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zipcodes.pro — ZIP/90731

90731

ZIP 90731 is in San Pedro, California, in Los Angeles County; area codes 310 and 424; Pacific time. San Pedro has 4 ZIP codes; the others are 90732, 90733 and 90734.

Type
Standard
Time zone
America/Los_Angeles
County
Los Angeles
Population
61,944
Coordinates
33.7324, -118.2782
☼ Live from 90731 — San Pedro, CA

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Local time: —

Where 90731 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 90731
  • 🔢 Type 90731 into a pocket calculator and turn it upside down: IELOG — not quite a word, sorry.
  • ➕ 90731 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110001001101011
  • 🏠 Its numerical neighbours: 90723 (Paramount, CA, 13 mi away) and 90732 (San Pedro, CA, 2 mi away).
  • 🔄 Backwards, 90731 becomes 13709, which is not a ZIP code at all.
  • 👥 59 other ZIP codes are made of exactly the same digits (01379, 01937, 07193, 07931, 09137, 09173, …). The farthest-flung twin is 09173 in APO AE, a military post office, 5,940 miles away.
  • 🧭 Farther south than 81% of all ZIP codes, and farther west than 92%.
  • 🎯1,166 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 90731 and you would come out at 33.73°S, 61.72°E — 967 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 24m of daylight. Shortest: 9h 54m.
  • 📏 At 9.2 square miles of land, 90731 is bigger than 26% of ZIP codes — room for about 7.0 Central Parks.
🌙 The sky over 90731 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population61,944This ZIP61,944
Households23,185This ZIP23,185
Housing units24,423This ZIP24,423
Median age38.6This ZIP38.6California37.9US 38.9
Median household income$76,395This ZIP$76,395California$99,122US $80,734
Median home value$851,000This ZIP$851,000California$734,700US $332,700
Median gross rent$1,740This ZIP$1,740California$2,036US $1,413
Bachelor's degree or higher26.8%This ZIP26.8%
Mean commute30.1 minThis ZIP30.1 min
Population density6,714.8 / sq miThis ZIP6,714.8 / sq mi

Business and tax activity

Business establishments976This ZIP976
Employees9,371This ZIP9,371
Annual payroll$550,397,000This ZIP$550,397,000
Tax returns filed26,690This ZIP26,690
Total adjusted gross income$1,940,450,000This ZIP$1,940,450,000

Land area

Land area9.23 sq miThis ZIP9.23 sq mi
Water area5.54 sq miThis ZIP5.54 sq mi

Other place names in 90731

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

ZIP codes near 90731

ZIPCityDistance
90732 San Pedro, CA 2.1 mi
90744 Wilmington, CA 3.3 mi
90748 Wilmington, CA 3.4 mi
90224 Compton, CA 3.9 mi
90267 Manhattan Beach, CA 3.9 mi
90295 Marina Del Rey, CA 3.9 mi
90296 Playa Del Rey, CA 3.9 mi
90307 Inglewood, CA 3.9 mi
90309 Inglewood, CA 3.9 mi
90310 Inglewood, CA 3.9 mi

Find every ZIP code within 10 miles of 90731 →

Questions about this ZIP code

Where is ZIP code 90731?

90731 is in San Pedro, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 33.7324, -118.2782.

What county is 90731 in?

90731 lies in Los Angeles County.

What area code is 90731?

San Pedro uses area codes 310 and 424, from NANPA's telephone records.

What time zone is 90731 in?

90731 uses America/Los_Angeles.

How many people live in 90731?

About 61,944 people live in ZIP code 90731, in 23,185 households, at 6,714.8 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 90731?

$76,395 a year, against $99,122 across California.

What ZIP codes are near 90731?

The closest are 90732 (2.1 mi), 90744 (3.3 mi), 90748 (3.4 mi), 90224 (3.9 mi) and 90267 (3.9 mi).

Is 90731 a PO Box ZIP code?

90731 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “90731 ZIP Code — San Pedro, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/90731

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