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/91327

91327

ZIP 91327 is in Northridge, California, in Los Angeles County; area codes 818 and 747; Pacific time. Northridge has 6 ZIP codes; the others are 91324, 91325, 91328, 91329 and 91330.

Type
No street area
Time zone
America/Los_Angeles
County
Los Angeles
Coordinates
34.2283, -118.5368

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 91324, whose figures describe that area — not this ZIP code.

☼ Live from 91327 — Northridge, CA

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Where 91327 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 91327
  • 🔢 Type 91327 into a pocket calculator and turn it upside down: LZEIG — not quite a word, sorry.
  • ➕ As a number, 91,327 = 271 × 337. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110010010111111
  • 🏠 Its numerical neighbours: 91326 (Porter Ranch, CA, 4 mi away) and 91328 (Northridge, CA, 0 mi away).
  • 🔄 Backwards, 91327 becomes 72319 — and that is a real ZIP code: Gosnell, AR, 1,614 miles away.
  • 👥 50 other ZIP codes are made of exactly the same digits (12937, 12973, 17239, 17329, 17923, 17932, …). The farthest-flung twin is 12937 in Fort Covington, NY, 2,426 miles away.
  • 🧭 Farther south than 77% of all ZIP codes, and farther west than 92%.
  • 🎯1,164 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91327 and you would come out at 34.23°S, 61.46°E — 992 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 26m of daylight. Shortest: 9h 52m.
🌙 The sky over 91327 today
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🌋 Shake report
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Source: USGS.

Business and tax activity

Business establishments7This ZIP7
Employees5This ZIP5
Annual payroll$371,000This ZIP$371,000

Land area

ZIP codes near 91327

ZIPCityDistance
91328 Northridge, CA 0.0 mi
91329 Northridge, CA 0.0 mi
91324 Northridge, CA 1.0 mi
91330 Northridge, CA 1.3 mi
91325 Northridge, CA 1.3 mi
91337 Reseda, CA 1.9 mi
91335 Reseda, CA 2.0 mi
91396 Winnetka, CA 2.3 mi
91394 Granada Hills, CA 2.6 mi
91306 Winnetka, CA 2.7 mi

Find every ZIP code within 10 miles of 91327 →

Questions about this ZIP code

Where is ZIP code 91327?

91327 is in Northridge, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.2283, -118.5368.

What county is 91327 in?

91327 lies in Los Angeles County.

What area code is 91327?

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

What time zone is 91327 in?

91327 uses America/Los_Angeles.

What ZIP codes are near 91327?

The closest are 91328 (0 mi), 91329 (0 mi), 91324 (1 mi), 91330 (1.3 mi) and 91325 (1.3 mi).

Is 91327 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. “91327 ZIP Code — Northridge, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91327

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/91327.json

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