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/92403

92403

ZIP 92403 is in San Bernardino, California, in San Bernardino County; area codes 909 and 840; Pacific time. San Bernardino has 15 ZIP codes in all.

Type
No street area
Time zone
America/Los_Angeles
Coordinates
34.1083, -117.2898

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 92401, whose figures describe that area — not this ZIP code.

☼ Live from 92403 — San Bernardino, CA

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Where 92403 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 92403
  • 🔢 Type 92403 into a pocket calculator and turn it upside down: EOhZG — not quite a word, sorry.
  • ➕ As a number, 92,403 = 3 × 3 × 10267. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110100011110011
  • 🏠 Its numerical neighbours: 92402 (San Bernardino, CA, 0 mi away) and 92404 (San Bernardino, CA, 6 mi away).
  • 🔄 Backwards, 92403 becomes 30429 — and that is a real ZIP code: Hagan, GA, 2,040 miles away.
  • 👥 51 other ZIP codes are made of exactly the same digits (02349, 02493, 03249, 04239, 04923, 04932, …). The farthest-flung twin is 04932 in Dixmont, ME, 2,631 miles away.
  • 🧭 Farther south than 78% of all ZIP codes, and farther west than 90%.
  • 🎯1,103 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 92403 and you would come out at 34.11°S, 62.71°E — 1,015 miles from Port Louis, Mauritius, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 26m of daylight. Shortest: 9h 53m.
🌙 The sky over 92403 today
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Source: USGS.

Land area

ZIP codes near 92403

ZIPCityDistance
92402 San Bernardino, CA 0.0 mi
92406 San Bernardino, CA 0.0 mi
92413 San Bernardino, CA 0.0 mi
92418 San Bernardino, CA 0.0 mi
92423 San Bernardino, CA 0.0 mi
92427 San Bernardino, CA 0.0 mi
92401 San Bernardino, CA 0.2 mi
92415 San Bernardino, CA 0.3 mi
92410 San Bernardino, CA 1.5 mi
92408 San Bernardino, CA 2.1 mi

Find every ZIP code within 10 miles of 92403 →

Questions about this ZIP code

Where is ZIP code 92403?

92403 is in San Bernardino, California, in San Bernardino County, part of the Riverside-San Bernardino-Ontario, CA metropolitan area. Its published point location is 34.1083, -117.2898.

What county is 92403 in?

92403 lies in San Bernardino County.

What area code is 92403?

San Bernardino uses area codes 909 and 840, from NANPA's telephone records.

What time zone is 92403 in?

92403 uses America/Los_Angeles.

What ZIP codes are near 92403?

The closest are 92402 (0 mi), 92406 (0 mi), 92413 (0 mi), 92418 (0 mi) and 92423 (0 mi).

Is 92403 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “92403 ZIP Code — San Bernardino, California (San Bernardino County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/92403

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