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/91330

91330

ZIP 91330 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, 91327, 91328 and 91329.

Type
Standard
Time zone
America/Los_Angeles
County
Los Angeles
Population
2,512
Coordinates
34.2445, -118.5267
☼ Live from 91330 — Northridge, CA

Weather right now

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NEXRAD radar
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Local time: —

Where 91330 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 91330
  • 🔢 Type 91330 into a pocket calculator and turn it upside down: OEEIG — not quite a word, sorry.
  • ➕ As a number, 91,330 = 2 × 5 × 9133. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110010011000010
  • 🏠 Its numerical neighbours: 91329 (Northridge, CA, 1 mi away) and 91331 (Pacoima, CA, 6 mi away).
  • 🔄 Backwards, 91330 becomes 03319, which is not a ZIP code at all.
  • 👥 27 other ZIP codes are made of exactly the same digits (01339, 10933, 13039, 13093, 13309, 13903, …). The farthest-flung twin is 01339 in Charlemont, MA, 2,505 miles away.
  • 🧭 Farther south than 77% of all ZIP codes, and farther west than 92%.
  • 🎯1,163 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91330 and you would come out at 34.24°S, 61.47°E — 994 miles from Saint-Denis, Reunion, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 27m of daylight. Shortest: 9h 52m.
  • 📏 At 0.499 square miles of land, 91330 is bigger than 5% of ZIP codes — about 242 football fields.
🌙 The sky over 91330 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population2,512This ZIP2,512
Households4This ZIP4
Housing units17This ZIP17
Median age20.3This ZIP20.3California37.9US 38.9
Bachelor's degree or higher71.1%This ZIP71.1%
Mean commute15.7 minThis ZIP15.7 min
Population density5,034.1 / sq miThis ZIP5,034.1 / sq mi

Business and tax activity

Business establishments17This ZIP17
Employees1,505This ZIP1,505
Annual payroll$37,654,000This ZIP$37,654,000

Land area

Land area0.50 sq miThis ZIP0.50 sq mi
Water area0.00 sq mi

Other place names in 91330

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 91330

ZIPCityDistance
91325 Northridge, CA 0.7 mi
91327 Northridge, CA 1.3 mi
91328 Northridge, CA 1.3 mi
91329 Northridge, CA 1.3 mi
91394 Granada Hills, CA 1.4 mi
91324 Northridge, CA 1.4 mi
91393 North Hills, CA 2.5 mi
91343 North Hills, CA 2.6 mi
91337 Reseda, CA 3.1 mi
91326 Porter Ranch, CA 3.1 mi

Find every ZIP code within 10 miles of 91330 →

Questions about this ZIP code

Where is ZIP code 91330?

91330 is in Northridge, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.2445, -118.5267.

What county is 91330 in?

91330 lies in Los Angeles County.

What area code is 91330?

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

What time zone is 91330 in?

91330 uses America/Los_Angeles.

How many people live in 91330?

About 2,512 people live in ZIP code 91330, in 4 households, at 5,034.1 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 91330?

The closest are 91325 (0.7 mi), 91327 (1.3 mi), 91328 (1.3 mi), 91329 (1.3 mi) and 91394 (1.4 mi).

Is 91330 a PO Box ZIP code?

91330 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “91330 ZIP Code — Northridge, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91330

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