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zipcodes.pro — ZIP/91311

91311

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

Type
Standard
Time zone
America/Los_Angeles
County
Los Angeles +1 more
Population
40,898
Coordinates
34.2925, -118.6024
☼ Live from 91311 — Chatsworth, CA

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Where 91311 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 91311
  • 🔢 Type 91311 into a pocket calculator and turn it upside down: IIEIG — not quite a word, sorry.
  • ➕ As a number, 91,311 = 3 × 11 × 2767. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10110010010101111
  • 🏠 Its numerical neighbours: 91310 (Castaic, CA, 14 mi away) and 91313 (Chatsworth, CA, 2 mi away).
  • 🔄 Backwards, 91311 becomes 11319, which is not a ZIP code at all.
  • 👥 8 other ZIP codes are made of exactly the same digits (11931, 13119, 19113, 19131, 19311, 31119, …). The farthest-flung twin is 11931 in Aquebogue, NY, 2,528 miles away.
  • 🧭 Farther south than 77% of all ZIP codes, and farther west than 92%.
  • 🎯1,165 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 91311 and you would come out at 34.29°S, 61.40°E — 995 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 33.5 square miles of land, 91311 is bigger than 48% of ZIP codes — room for about 25 Central Parks.
🌙 The sky over 91311 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population40,898This ZIP40,898
Households14,561This ZIP14,561
Housing units15,097This ZIP15,097
Median age42.3This ZIP42.3California37.9US 38.9
Median household income$119,386This ZIP$119,386California$99,122US $80,734
Median home value$876,400This ZIP$876,400California$734,700US $332,700
Median gross rent$2,311This ZIP$2,311California$2,036US $1,413
Bachelor's degree or higher46.2%This ZIP46.2%
Mean commute29.3 minThis ZIP29.3 min
Population density1,222.2 / sq miThis ZIP1,222.2 / sq mi

Business and tax activity

Business establishments2,101This ZIP2,101
Employees35,403This ZIP35,403
Annual payroll$2,177,352,000This ZIP$2,177,352,000
Tax returns filed19,420This ZIP19,420
Total adjusted gross income$2,166,296,000This ZIP$2,166,296,000

Land area

Land area33.46 sq miThis ZIP33.46 sq mi
Water area0.03 sq miThis ZIP0.03 sq mi

Counties 91311 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Los Angeles County 96.7%
Ventura County 3.3%

Other place names in 91311

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

ZIP codes near 91311

ZIPCityDistance
91313 Chatsworth, CA 2.4 mi
91326 Porter Ranch, CA 2.8 mi
91324 Northridge, CA 4.8 mi
91394 Granada Hills, CA 4.9 mi
93063 Simi Valley, CA 4.9 mi
91304 Canoga Park, CA 5.1 mi
91330 Northridge, CA 5.4 mi
91344 Granada Hills, CA 5.6 mi
91381 Stevenson Ranch, CA 5.6 mi
91396 Winnetka, CA 5.7 mi

Find every ZIP code within 10 miles of 91311 →

Questions about this ZIP code

Where is ZIP code 91311?

91311 is in Chatsworth, California, in Los Angeles County, part of the Los Angeles-Long Beach-Anaheim, CA metropolitan area. Its published point location is 34.2925, -118.6024.

What county is 91311 in?

91311 spans 2 counties: Los Angeles County and Ventura County. Most of it falls in Los Angeles County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What time zone is 91311 in?

91311 uses America/Los_Angeles.

How many people live in 91311?

About 40,898 people live in ZIP code 91311, in 14,561 households, at 1,222.2 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 91311?

$119,386 a year, against $99,122 across California.

What ZIP codes are near 91311?

The closest are 91313 (2.4 mi), 91326 (2.8 mi), 91324 (4.8 mi), 91394 (4.9 mi) and 93063 (4.9 mi).

Is 91311 a PO Box ZIP code?

91311 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “91311 ZIP Code — Chatsworth, California (Los Angeles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/91311

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