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/92079

92079

ZIP 92079 is in San Marcos, California, in San Diego County; area codes 760 and 442; Pacific time. San Marcos has 4 ZIP codes; the others are 92069, 92078 and 92096.

Type
No street area
Time zone
America/Los_Angeles
County
San Diego
Coordinates
33.1434, -117.1661

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 92069, whose figures describe that area — not this ZIP code.

☼ Live from 92079 — San Marcos, CA

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Where 92079 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 92079
  • 🔢 Type 92079 into a pocket calculator and turn it upside down: GLOZG — not quite a word, sorry.
  • ➕ As a number, 92,079 = 3 × 3 × 13 × 787. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110011110101111
  • 🏠 Its numerical neighbours: 92078 (San Marcos, CA, 2 mi away) and 92081 (Vista, CA, 5 mi away).
  • 🔄 Backwards, 92079 becomes 97029 — and that is a real ZIP code: Grass Valley, OR, 862 miles away.
  • 👥 23 other ZIP codes are made of exactly the same digits (09279, 09729, 20799, 20997, 27099, 27909, …). The farthest-flung twin is 09279 in APO AE, a military post office, 5,879 miles away.
  • 🧭 Farther south than 84% of all ZIP codes, and farther west than 90%.
  • 🎯1,128 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 92079 and you would come out at 33.14°S, 62.83°E — 955 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 92079 today
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🌋 Shake report
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Source: USGS.

Business and tax activity

Business establishments8This ZIP8
Employees125This ZIP125
Annual payroll$9,689,000This ZIP$9,689,000

Land area

ZIP codes near 92079

ZIPCityDistance
92096 San Marcos, CA 1.2 mi
92078 San Marcos, CA 2.0 mi
92069 San Marcos, CA 2.3 mi
92081 Vista, CA 4.5 mi
92029 Escondido, CA 4.7 mi
92030 Escondido, CA 4.9 mi
92033 Escondido, CA 4.9 mi
92046 Escondido, CA 4.9 mi
92026 Escondido, CA 5.2 mi
92009 Carlsbad, CA 5.7 mi

Find every ZIP code within 10 miles of 92079 →

Questions about this ZIP code

Where is ZIP code 92079?

92079 is in San Marcos, California, in San Diego County, part of the San Diego-Chula Vista-Carlsbad, CA metropolitan area. Its published point location is 33.1434, -117.1661.

What county is 92079 in?

92079 lies in San Diego County.

What area code is 92079?

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

What time zone is 92079 in?

92079 uses America/Los_Angeles.

What ZIP codes are near 92079?

The closest are 92096 (1.2 mi), 92078 (2 mi), 92069 (2.3 mi), 92081 (4.5 mi) and 92029 (4.7 mi).

Is 92079 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. “92079 ZIP Code — San Marcos, California (San Diego County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/92079

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/92079.json

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