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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/92603

92603

ZIP 92603 is in Irvine, California, in Orange County; area code 949; Pacific time. Irvine has 13 ZIP codes in all.

Type
Standard
Time zone
America/Los_Angeles
County
Orange
Population
18,387
Coordinates
33.6293, -117.7941
☼ Live from 92603 — Irvine, CA

Weather right now

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Where 92603 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 92603
  • 🔢 Type 92603 into a pocket calculator and turn it upside down: EOgZG — not quite a word, sorry.
  • ➕ As a number, 92,603 = 7 × 13229. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110100110111011
  • 🏠 Its numerical neighbours: 92602 (Irvine, CA, 8 mi away) and 92604 (Irvine, CA, 4 mi away).
  • 🔄 Backwards, 92603 becomes 30629 — and that is a real ZIP code: Comer, GA, 1,981 miles away.
  • 👥 49 other ZIP codes are made of exactly the same digits (02639, 03269, 06239, 09263, 20639, 20693, …). The farthest-flung twin is 96203 in APO AA, a military post office, 5,997 miles away.
  • 🧭 Farther south than 81% of all ZIP codes, and farther west than 91%.
  • 🎯1,144 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 92603 and you would come out at 33.63°S, 62.21°E — 973 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 23m of daylight. Shortest: 9h 55m.
  • 📏 At 10.0 square miles of land, 92603 is bigger than 27% of ZIP codes — room for about 7.6 Central Parks.
🌙 The sky over 92603 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population18,387This ZIP18,387
Households7,176This ZIP7,176
Housing units7,793This ZIP7,793
Median age41.1This ZIP41.1California37.9US 38.9
Median household income$173,094This ZIP$173,094California$99,122US $80,734
Median home value$1,931,700This ZIP$1,931,700California$734,700US $332,700
Median gross rent$3,392This ZIP$3,392California$2,036US $1,413
Bachelor's degree or higher75.5%This ZIP75.5%
Mean commute25.3 minThis ZIP25.3 min
Population density1,841.1 / sq miThis ZIP1,841.1 / sq mi

Business and tax activity

Business establishments524This ZIP524
Employees2,938This ZIP2,938
Annual payroll$394,207,000This ZIP$394,207,000
Tax returns filed9,080This ZIP9,080
Total adjusted gross income$2,880,415,000This ZIP$2,880,415,000

Land area

Land area9.99 sq miThis ZIP9.99 sq mi
Water area0.00 sq mi

Other place names in 92603

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

ZIP codes near 92603

ZIPCityDistance
92612 Irvine, CA 2.8 mi
92617 Irvine, CA 2.8 mi
92616 Irvine, CA 2.9 mi
92657 Newport Coast, CA 3.1 mi
92619 Irvine, CA 3.3 mi
92697 Irvine, CA 3.5 mi
92698 Aliso Viejo, CA 3.7 mi
92650 East Irvine, CA 4.0 mi
92658 Newport Beach, CA 4.1 mi
92614 Irvine, CA 4.1 mi

Find every ZIP code within 10 miles of 92603 →

Questions about this ZIP code

Where is ZIP code 92603?

92603 is in Irvine, California, in Orange County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 33.6293, -117.7941.

What county is 92603 in?

92603 lies in Orange County.

What area code is 92603?

Irvine uses area code 949, from NANPA's telephone records.

What time zone is 92603 in?

92603 uses America/Los_Angeles.

How many people live in 92603?

About 18,387 people live in ZIP code 92603, in 7,176 households, at 1,841.1 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 92603?

$173,094 a year, against $99,122 across California.

What ZIP codes are near 92603?

The closest are 92612 (2.8 mi), 92617 (2.8 mi), 92616 (2.9 mi), 92657 (3.1 mi) and 92619 (3.3 mi).

Is 92603 a PO Box ZIP code?

92603 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “92603 ZIP Code — Irvine, California (Orange County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/92603

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