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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/91325

91325

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

Type
Standard
Time zone
America/Los_Angeles
County
Los Angeles
Population
35,062
Coordinates
34.2375, -118.5177
☼ Live from 91325 — Northridge, CA

Weather right now

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Local time: —

Where 91325 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 91325
  • 🔢 Type 91325 into a pocket calculator and turn it upside down: SZEIG — not quite a word, sorry.
  • ➕ As a number, 91,325 = 5 × 5 × 13 × 281. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110010010111101
  • 🏠 Its numerical neighbours: 91324 (Northridge, CA, 2 mi away) and 91326 (Porter Ranch, CA, 4 mi away).
  • 🔄 Backwards, 91325 becomes 52319, which is not a ZIP code at all.
  • 👥 49 other ZIP codes are made of exactly the same digits (12935, 12953, 15239, 15329, 15923, 19352, …). The farthest-flung twin is 12935 in Ellenburg Depot, NY, 2,459 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 91325 and you would come out at 34.24°S, 61.48°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.
  • 📏 At 4.8 square miles of land, 91325 is bigger than 19% of ZIP codes — room for about 3.7 Central Parks.
🌙 The sky over 91325 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population35,062This ZIP35,062
Households12,894This ZIP12,894
Housing units13,736This ZIP13,736
Median age37.9This ZIP37.9California37.9US 38.9
Median household income$87,168This ZIP$87,168California$99,122US $80,734
Median home value$944,500This ZIP$944,500California$734,700US $332,700
Median gross rent$2,060This ZIP$2,060California$2,036US $1,413
Bachelor's degree or higher42.1%This ZIP42.1%
Mean commute28.5 minThis ZIP28.5 min
Population density7,280.3 / sq miThis ZIP7,280.3 / sq mi

Business and tax activity

Business establishments829This ZIP829
Employees13,305This ZIP13,305
Annual payroll$994,511,000This ZIP$994,511,000
Tax returns filed16,540This ZIP16,540
Total adjusted gross income$1,404,264,000This ZIP$1,404,264,000

Land area

Land area4.82 sq miThis ZIP4.82 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Other place names in 91325

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

ZIP codes near 91325

ZIPCityDistance
91330 Northridge, CA 0.7 mi
91327 Northridge, CA 1.3 mi
91328 Northridge, CA 1.3 mi
91329 Northridge, CA 1.3 mi
91324 Northridge, CA 1.9 mi
91393 North Hills, CA 1.9 mi
91394 Granada Hills, CA 1.9 mi
91343 North Hills, CA 2.0 mi
91337 Reseda, CA 2.7 mi
91335 Reseda, CA 2.9 mi

Find every ZIP code within 10 miles of 91325 →

Questions about this ZIP code

Where is ZIP code 91325?

91325 is in Northridge, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.2375, -118.5177.

What county is 91325 in?

91325 lies in Los Angeles County.

What area code is 91325?

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

What time zone is 91325 in?

91325 uses America/Los_Angeles.

How many people live in 91325?

About 35,062 people live in ZIP code 91325, in 12,894 households, at 7,280.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 91325?

$87,168 a year, against $99,122 across California.

What ZIP codes are near 91325?

The closest are 91330 (0.7 mi), 91327 (1.3 mi), 91328 (1.3 mi), 91329 (1.3 mi) and 91324 (1.9 mi).

Is 91325 a PO Box ZIP code?

91325 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “91325 ZIP Code — Northridge, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91325

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