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/91313

91313

ZIP 91313 is in Chatsworth, California, in Los Angeles County; Pacific time. Chatsworth has 2 ZIP codes; the other is 91311.

Type
No street area
Time zone
America/Los_Angeles
County
Los Angeles
Coordinates
34.2572, -118.6012

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 91311, whose figures describe that area — not this ZIP code.

☼ Live from 91313 — Chatsworth, CA

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Where 91313 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 91313
  • 🔢 Type 91313 into a pocket calculator and turn it upside down: EIEIG — not quite a word, sorry.
  • ➕ As a number, 91,313 = 127 × 719. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110010010110001
  • 🏠 Its numerical neighbours: 91311 (Chatsworth, CA, 2 mi away) and 91316 (Encino, CA, 8 mi away).
  • 🔄 Backwards, 91313 becomes 31319 — and that is a real ZIP code: Meridian, GA, 2,158 miles away.
  • 👥 14 other ZIP codes are made of exactly the same digits (11933, 13139, 13319, 19133, 19331, 31139, …). The farthest-flung twin is 11933 in Calverton, NY, 2,522 miles away.
  • 🧭 Farther south than 77% of all ZIP codes, and farther west than 92%.
  • 🎯1,166 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91313 and you would come out at 34.26°S, 61.40°E — 993 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 91313 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments13This ZIP13
Employees346This ZIP346
Annual payroll$39,169,000This ZIP$39,169,000

Land area

ZIP codes near 91313

ZIPCityDistance
91311 Chatsworth, CA 2.4 mi
91326 Porter Ranch, CA 3.1 mi
91324 Northridge, CA 3.2 mi
91304 Canoga Park, CA 3.2 mi
91396 Winnetka, CA 3.5 mi
91306 Winnetka, CA 3.6 mi
91305 Canoga Park, CA 3.9 mi
91309 Canoga Park, CA 3.9 mi
91303 Canoga Park, CA 4.1 mi
91327 Northridge, CA 4.2 mi

Find every ZIP code within 10 miles of 91313 →

Questions about this ZIP code

Where is ZIP code 91313?

91313 is in Chatsworth, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.2572, -118.6012.

What county is 91313 in?

91313 lies in Los Angeles County.

What time zone is 91313 in?

91313 uses America/Los_Angeles.

What ZIP codes are near 91313?

The closest are 91311 (2.4 mi), 91326 (3.1 mi), 91324 (3.2 mi), 91304 (3.2 mi) and 91396 (3.5 mi).

Is 91313 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. “91313 ZIP Code — Chatsworth, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91313

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/91313.json

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