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/92051

92051

ZIP 92051 is in Oceanside, California, in San Diego County; area codes 760 and 442; Pacific time. Oceanside has 7 ZIP codes in all.

Type
No street area
Time zone
America/Los_Angeles
County
San Diego
Coordinates
33.1959, -117.3795

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 92054, whose figures describe that area — not this ZIP code.

☼ Live from 92051 — Oceanside, CA

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Where 92051 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 92051
  • 🔢 Type 92051 into a pocket calculator and turn it upside down: ISOZG — not quite a word, sorry.
  • ➕ 92051 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011110010011
  • 🏠 Its numerical neighbours: 92049 (Oceanside, CA, 0 mi away) and 92052 (Oceanside, CA, 0 mi away).
  • 🔄 Backwards, 92051 becomes 15029, which is not a ZIP code at all.
  • 👥 51 other ZIP codes are made of exactly the same digits (01259, 01529, 01952, 02915, 09215, 09251, …). The farthest-flung twin is 09251 in APO AE, a military post office, 5,808 miles away.
  • 🧭 Farther south than 83% of all ZIP codes, and farther west than 90%.
  • 🎯1,137 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 92051 and you would come out at 33.20°S, 62.62°E — 954 miles from Port Louis, Mauritius, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 21m of daylight. Shortest: 9h 57m.
🌙 The sky over 92051 today
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Source: USGS.

Land area

ZIP codes near 92051

ZIPCityDistance
92049 Oceanside, CA 0.0 mi
92052 Oceanside, CA 0.0 mi
92054 Oceanside, CA 1.2 mi
92013 Carlsbad, CA 3.1 mi
92018 Carlsbad, CA 3.1 mi
92068 San Luis Rey, CA 4.1 mi
92056 Oceanside, CA 4.7 mi
92058 Oceanside, CA 5.1 mi
92008 Carlsbad, CA 5.3 mi
92010 Carlsbad, CA 6.1 mi

Find every ZIP code within 10 miles of 92051 →

Questions about this ZIP code

Where is ZIP code 92051?

92051 is in Oceanside, California, in San Diego County, part of the San Diego-Chula Vista-Carlsbad, CA metropolitan area. Its published point location is 33.1959, -117.3795.

What county is 92051 in?

92051 lies in San Diego County.

What area code is 92051?

Oceanside uses area codes 760 and 442, from NANPA's telephone records.

What time zone is 92051 in?

92051 uses America/Los_Angeles.

What ZIP codes are near 92051?

The closest are 92049 (0 mi), 92052 (0 mi), 92054 (1.2 mi), 92013 (3.1 mi) and 92018 (3.1 mi).

Is 92051 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. “92051 ZIP Code — Oceanside, California (San Diego County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/92051

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curl https://zipcodes.pro/zip/92051.json

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