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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/91392

91392

ZIP 91392 is in Sylmar, California, in Los Angeles County; area codes 818 and 747; Pacific time. Sylmar has 2 ZIP codes; the other is 91342.

Type
No street area
Time zone
America/Los_Angeles
County
Los Angeles
Coordinates
34.3078, -118.4492

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 91342, whose figures describe that area — not this ZIP code.

☼ Live from 91392 — Sylmar, CA

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Where 91392 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 91392
  • 🔢 Type 91392 into a pocket calculator and turn it upside down: ZGEIG — not quite a word, sorry.
  • ➕ As a number, 91,392 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 17. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110010100000000
  • 🏠 Its numerical neighbours: 91390 (Santa Clarita, CA, 19 mi away) and 91393 (North Hills, CA, 5 mi away).
  • 🔄 Backwards, 91392 becomes 29319 — and that is a real ZIP code: Spartanburg, SC, 2,065 miles away.
  • 👥 20 other ZIP codes are made of exactly the same digits (12939, 12993, 23919, 29319, 29913, 29931, …). The farthest-flung twin is 12993 in Westport, NY, 2,467 miles away.
  • 🧭 Farther south than 77% of all ZIP codes, and farther west than 92%.
  • 🎯1,157 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91392 and you would come out at 34.31°S, 61.55°E — 999 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 27m of daylight. Shortest: 9h 52m.
🌙 The sky over 91392 today
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🌋 Shake report
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Source: USGS.

Business and tax activity

Business establishments13This ZIP13
Employees1,098This ZIP1,098
Annual payroll$124,076,000This ZIP$124,076,000

Land area

ZIP codes near 91392

ZIPCityDistance
91340 San Fernando, CA 1.7 mi
91341 San Fernando, CA 1.9 mi
91345 Mission Hills, CA 2.9 mi
91333 Pacoima, CA 3.4 mi
91334 Pacoima, CA 3.4 mi
91344 Granada Hills, CA 3.4 mi
91346 Mission Hills, CA 3.6 mi
91395 Mission Hills, CA 3.6 mi
91331 Pacoima, CA 4.0 mi
91342 Sylmar, CA 4.0 mi

Find every ZIP code within 10 miles of 91392 →

Questions about this ZIP code

Where is ZIP code 91392?

91392 is in Sylmar, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.3078, -118.4492.

What county is 91392 in?

91392 lies in Los Angeles County.

What area code is 91392?

Sylmar uses area codes 818 and 747, from NANPA's telephone records.

What time zone is 91392 in?

91392 uses America/Los_Angeles.

What ZIP codes are near 91392?

The closest are 91340 (1.7 mi), 91341 (1.9 mi), 91345 (2.9 mi), 91333 (3.4 mi) and 91334 (3.4 mi).

Is 91392 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. “91392 ZIP Code — Sylmar, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91392

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/91392.json

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