Plain

Residential delivery area · California

ZIP Code 91311: Chatsworth, CA

ZIP code 91311 uses the postal name Chatsworth, California and lies mostly in Los Angeles County (97% of its land) with the rest in Ventura County (Census 2020 ZIP-county file). About 41,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $119,386 (Census Bureau, ACS 2020-2024). By Census place, 35% of its land lies in Los Angeles; 65% is outside any Census place.

  • ACS2020-24
  • Census2020
  • FHFA2025
  • ZBP2023
  • IRS2022
9national area: California, Alaska, Hawaii, Oregon, Washington and 7 more
913sectional center: Santa Clarita, CA (SCF 913)
11delivery area within it
Town
Chatsworth · its only residential ZIP
Census places
Los Angeles
Neighborhood
Chatsworth Reservoir GeoNames
Metro area
Los Angeles-Long Beach-Anaheim, CA
House districts
CA-27 (62%), CA-32 (35%), CA-26 (3%) 119th Congress, by share of land
Time zone
Pacific
Land area
33.5 sq mi · 1,222 people per sq mi
PO Box ZIPs
91313 also use the name Chatsworth

Where is ZIP code 91311?

91311 centers on 34.292°, -118.602° and covers 33.5 square miles of land plus 0.0 of water. It borders 7 ZIP codes: 91326, 91324, 93063, 91304, 91344, 91381, 91306.

91304 · Canoga Park91306 · Winnetka91324 · Northridge91326 · Porter Ranch91344 · Granada Hills91381 · Stevenson Ranch93063 · Simi Valley91311 · Chatsworth (this ZIP)913119138193063913449130491326913249130691304 · Canoga Park91306 · Winnetka91324 · Northridge91326 · Porter Ranch91344 · Granada Hills91381 · Stevenson Ranch93063 · Simi Valley91311 · Chatsworth (this ZIP)913119138193063913449130491326913249130691304 · Canoga Park91306 · Winnetka91324 · Northridge91326 · Porter Ranch91344 · Granada Hills91381 · Stevenson Ranch93063 · Simi Valley91311 · Chatsworth (this ZIP)91311913819306391344913049132691324
Shaded by median household income, in national fifths (ACS 2020-2024); 91311 outlined. Census 2020 ZCTA boundaries. <$54.1k$98.1k+no figure

The map draws ZIP code areas only. For the streets inside 91311, open its center on OpenStreetMap.

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.

How does 91311 compare with the rest of Los Angeles County?

Rank of 91311 among the residential ZIP codes of its town, county and state (1 = the most; income and home value among ZIP codes of 1,000+ people living in households)
Measure91311In Los Angeles CountyIn CA
People (ACS 2020-2024)40,89894th of 301371st of 1,802
Median household income$119k61st of 265360th of 1,189
Median home value$876k127th of 273460th of 1,317

Its median household income is higher than in 90% of U.S. residential ZIP codes, and it is denser than 80% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).

How many people live in 91311?

The 2020 Census counted 39,014 people in 91311; the ACS, which samples households over 2020-2024, estimates 40,898. Between the 2010 and 2020 censuses its population grew 6.7% (its boundary stayed at least 90% the same).

People, ACS 2020-2024
40,898
2020 Census count
39,014+6.7% since 2010 (36,557)
Households
14,561
Median age
42.3

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).

Who lives in 91311?

Of the 40,898 people the ACS estimates in 91311, 20.7% are under 18 and 19.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (40.3%), then Hispanic or Latino (28.8%).

  • Under 1820.7%
  • 18 to 6459.8%
  • 65 and older19.4%
Age of the people of 91311 (ACS 2020-2024, B01001)
  • White, not Hispanic40.3%
  • Hispanic or Latino28.8%
  • Asian, not Hispanic17.7%
  • Black, not Hispanic7.0%
  • Other or two or more6.2%
Race and Hispanic origin in 91311 (ACS 2020-2024, B03002); each person counted once

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.

What do households in 91311 earn?

Median household income is $119,386 (ACS 2020-2024), the 61st highest of the 265 ranked ZIP codes in Los Angeles County. It is not measurably different from 2015-2019 ($112,757 in 2024 dollars): the change is within the surveys' margins of error.

Median household income
$119,386
Income per person
$53,824
Below the poverty line
8.8%
Unemployed (of the labor force)
5.4%
Adults 25+ with a bachelor's degree
46.2%
Adjusted gross income per tax return, 2022
$111,55019,420 returns; wages 63% of AGI (IRS)

Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).

What are homes worth in 91311?

FHFA's house price index for 91311, built from repeat sales and appraisals of the same homes, rose 86% from 2015 to 2025 and rose 45% from 2020 to 2025, and moved +4.1% in 2025.

Median home value (owners' estimate)
$876,400
Median gross rent
$2,311
Homes owned by their occupants
66.6%
Housing units
15,097
0 400 800 1200 1600 2000 197519902000201020202025 0 400 800 1200 1600 2000 197519902000201020202025 0 400 800 1200 1600 2000 197519902000201020202025
Index = 100 in 1975, the first year FHFA reports for 91311; 2025: 1902.1. Annual, not seasonally adjusted; FHFA calls its ZIP-level indexes developmental.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.

What businesses are in 91311?

2,101 business establishments had a location in this ZIP code in 2023, 59 more than in 2018; the most are in manufacturing (ZIP Code Business Patterns).

  • Manufacturing291
  • Wholesale trade272
  • Professional, scientific, and technical services231
  • Construction196
  • Retail trade187
  • Health care and social assistance178

Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).

Which ZIP codes are next to 91311?

ZIP codes that share a boundary with 91311, then the nearest by center
ZIPTownPeopleHousehold incomeDistance
91326Porter Ranch38,428$148k2.8 mi
91324Northridge30,699$100k4.8 mi
93063Simi Valley55,066$125k4.9 mi
91304Canoga Park52,474$90k5.1 mi
91344Granada Hills52,890$119k5.6 mi
91381Stevenson Ranch22,582$159k5.6 mi
91306Winnetka47,176$93k5.9 mi
91330Northridge2,512–5.4 mi (near)

Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.

Which other ZIP codes use the name Chatsworth?

1 more ZIP code carries the postal name Chatsworth, CA without a residential delivery area: PO boxes at the post office, or a single organization with its own ZIP code. The Census Bureau publishes no figures for it.

ZIP codes named Chatsworth without a residential area (GeoNames postal codes)
ZIPCounty
91313Los Angeles County

Source: GeoNames postal codes (CC BY 4.0), downloaded 2026-10-09; a ZIP code with no Census ZCTA has no residential delivery area.