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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/90401

90401

ZIP 90401 is in Santa Monica, California, in Los Angeles County; Pacific time. Santa Monica has 11 ZIP codes in all.

Type
Standard
Time zone
America/Los_Angeles
County
Los Angeles
Population
8,101
Coordinates
34.0161, -118.4925
☼ Live from 90401 — Santa Monica, CA

Weather right now

Asking the National Weather Service…

NEXRAD radar
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Local time: —

Where 90401 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 90401
  • 🔢 Type 90401 into a pocket calculator and turn it upside down: IOhOG — not quite a word, sorry.
  • ➕ 90401 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110000100100001
  • 🏠 Its numerical neighbours: 90312 (Inglewood, CA, 9 mi away) and 90402 (Santa Monica, CA, 1 mi away).
  • 🔄 Backwards, 90401 becomes 10409, which is not a ZIP code at all.
  • 👥 26 other ZIP codes are made of exactly the same digits (00914, 01094, 01904, 01940, 04019, 04091, …). The farthest-flung twin is 09041 in APO AE, a military post office, 5,978 miles away.
  • 🧭 Farther south than 79% of all ZIP codes, and farther west than 92%.
  • 🎯1,168 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 90401 and you would come out at 34.02°S, 61.51°E — 980 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 25m of daylight. Shortest: 9h 53m.
  • 📏 At 0.755 square miles of land, 90401 is bigger than 7% of ZIP codes — about 365 football fields.
🌙 The sky over 90401 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population8,101This ZIP8,101
Households5,256This ZIP5,256
Housing units6,104This ZIP6,104
Median age36.9This ZIP36.9California37.9US 38.9
Median household income$110,385This ZIP$110,385California$99,122US $80,734
Median home value$1,149,200This ZIP$1,149,200California$734,700US $332,700
Median gross rent$2,477This ZIP$2,477California$2,036US $1,413
Bachelor's degree or higher77.3%This ZIP77.3%
Mean commute23.1 minThis ZIP23.1 min
Population density10,729.8 / sq miThis ZIP10,729.8 / sq mi

Business and tax activity

Business establishments1,817This ZIP1,817
Employees28,887This ZIP28,887
Annual payroll$2,883,929,000This ZIP$2,883,929,000
Tax returns filed4,540This ZIP4,540
Total adjusted gross income$1,242,917,000This ZIP$1,242,917,000

Land area

Land area0.76 sq miThis ZIP0.76 sq mi
Water area0.00 sq mi

Other place names in 90401

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

ZIP codes near 90401

ZIPCityDistance
90406 Santa Monica, CA 0.2 mi
90407 Santa Monica, CA 0.2 mi
90408 Santa Monica, CA 0.2 mi
90409 Santa Monica, CA 0.2 mi
90410 Santa Monica, CA 0.2 mi
90411 Santa Monica, CA 0.2 mi
90403 Santa Monica, CA 1.0 mi
90405 Santa Monica, CA 1.2 mi
90404 Santa Monica, CA 1.3 mi
90402 Santa Monica, CA 1.4 mi

Find every ZIP code within 10 miles of 90401 →

Questions about this ZIP code

Where is ZIP code 90401?

90401 is in Santa Monica, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.0161, -118.4925.

What county is 90401 in?

90401 lies in Los Angeles County.

What time zone is 90401 in?

90401 uses America/Los_Angeles.

How many people live in 90401?

About 8,101 people live in ZIP code 90401, in 5,256 households, at 10,729.8 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 90401?

$110,385 a year, against $99,122 across California.

What ZIP codes are near 90401?

The closest are 90406 (0.2 mi), 90407 (0.2 mi), 90408 (0.2 mi), 90409 (0.2 mi) and 90410 (0.2 mi).

Is 90401 a PO Box ZIP code?

90401 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “90401 ZIP Code — Santa Monica, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/90401

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