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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/90720

90720

ZIP 90720 is in Los Alamitos, California, in Orange County; Pacific time. Los Alamitos has 2 ZIP codes; the other is 90721.

Type
Standard
Time zone
America/Los_Angeles
County
Orange
Population
23,805
Coordinates
33.7950, -118.0627
☼ Live from 90720 — Los Alamitos, CA

Weather right now

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Local time: —

Where 90720 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 90720
  • 🔢 Type 90720 into a pocket calculator and turn it upside down: OZLOG — not quite a word, sorry.
  • ➕ As a number, 90,720 = 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 7. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110001001100000
  • 🏠 Its numerical neighbours: 90717 (Lomita, CA, 15 mi away) and 90721 (Los Alamitos, CA, 1 mi away).
  • 🔄 Backwards, 90720 becomes 02709, which is not a ZIP code at all.
  • 👥 26 other ZIP codes are made of exactly the same digits (00729, 00792, 00927, 02790, 02907, 07029, …). The farthest-flung twin is 09072 in APO AE, a military post office, 5,692 miles away.
  • 🧭 Farther south than 80% of all ZIP codes, and farther west than 91%.
  • 🎯1,153 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 90720 and you would come out at 33.80°S, 61.94°E — 976 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 6.1 square miles of land, 90720 is bigger than 21% of ZIP codes — room for about 4.6 Central Parks.
🌙 The sky over 90720 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population23,805This ZIP23,805
Households8,478This ZIP8,478
Housing units8,825This ZIP8,825
Median age43.0This ZIP43.0California37.9US 38.9
Median household income$135,851This ZIP$135,851California$99,122US $80,734
Median home value$1,215,400This ZIP$1,215,400California$734,700US $332,700
Median gross rent$2,465This ZIP$2,465California$2,036US $1,413
Bachelor's degree or higher53.3%This ZIP53.3%
Mean commute29.5 minThis ZIP29.5 min
Population density3,915.9 / sq miThis ZIP3,915.9 / sq mi

Business and tax activity

Business establishments1,244This ZIP1,244
Employees15,195This ZIP15,195
Annual payroll$1,099,160,000This ZIP$1,099,160,000
Tax returns filed11,240This ZIP11,240
Total adjusted gross income$1,803,755,000This ZIP$1,803,755,000

Land area

Land area6.08 sq miThis ZIP6.08 sq mi
Water area0.06 sq miThis ZIP0.06 sq mi

Other place names in 90720

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

ZIP codes near 90720

ZIPCityDistance
90721 Los Alamitos, CA 0.6 mi
92846 Garden Grove, CA 1.8 mi
90630 Cypress, CA 2.1 mi
92845 Garden Grove, CA 2.2 mi
90716 Hawaiian Gardens, CA 2.5 mi
90740 Seal Beach, CA 2.9 mi
90815 Long Beach, CA 3.0 mi
90715 Lakewood, CA 3.3 mi
90822 Long Beach, CA 3.4 mi
90808 Long Beach, CA 3.4 mi

Find every ZIP code within 10 miles of 90720 →

Questions about this ZIP code

Where is ZIP code 90720?

90720 is in Los Alamitos, California, in Orange County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 33.7950, -118.0627.

What county is 90720 in?

90720 lies in Orange County.

What time zone is 90720 in?

90720 uses America/Los_Angeles.

How many people live in 90720?

About 23,805 people live in ZIP code 90720, in 8,478 households, at 3,915.9 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 90720?

$135,851 a year, against $99,122 across California.

What ZIP codes are near 90720?

The closest are 90721 (0.6 mi), 92846 (1.8 mi), 90630 (2.1 mi), 92845 (2.2 mi) and 90716 (2.5 mi).

Is 90720 a PO Box ZIP code?

90720 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “90720 ZIP Code — Los Alamitos, California (Orange County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/90720

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