Zip Code 91311
Chatsworth, California — Los Angeles County
📍 ZIP code 91311 is in Chatsworth, Los Angeles County, California.
ZIP code 91311 is located in Chatsworth, Los Angeles County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 40,557. The area code for ZIP code 91311 is 818.
Quick Answer
Zip code 91311 is in Chatsworth, California (Los Angeles County). It has a population of 40,557, median household income of $117,574, and median home value of $837,300.
Population
40,557
Income
$117,574
Home Value
$837,300
Climate
90°F / 47°F
About Zip Code 91311
Zip code 91311 is located in Chatsworth, California, within Los Angeles County. Home to approximately 40,557 residents, this area sits at an elevation of 1734 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 818.
The median household income is $117,574 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $837,300, and the cost of living index is 229 (129% above the national average of 100).
Summers average a high of 90°F while winters drop to 47°F. The area receives about 15 in of rain annually. The zip code covers 32.1 square miles of land area and 0.9 square miles of water.
Key Statistics
40,557
$117,574
$837,300
Pacific (PST/PDT)
818
1734 ft
32.1 sq mi
42.3
14,879
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Compare With Nearby Zip Codes
| Metric | 91311 | 91326 | 91324 | 93063 | 91304 | 91344 |
|---|---|---|---|---|---|---|
| City | Chatsworth, CA | Canoga Park, CA | Tarzana, CA | Simi Valley, CA | Canoga Park, CA | Sylmar, CA |
| Population | 40,557 | 37,068 | 29,510 | 56,110 | 53,794 | 53,248 |
| Median Income | $117,574 | $148,636 | $99,834 | $124,030 | $82,289 | $116,647 |
| Home Value | $837,300 | $1,011,100 | $869,200 | $746,000 | $847,600 | $872,000 |
| Cost of Living | 229 | 250 | 226 | 211 | 211 | 233 |
| Median Age | 42.3 | 43.8 | 38.7 | 42.6 | 40.9 | 43.5 |
Cost of Living
100 = National Average. Chatsworth's cost of living is 129% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
7.1x
Demographics
Zip code 91311 has a population of 40,557 people with a median age of 42.3. There are 14,879 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Chatsworth (91311) population trend from 2010 to 2024
↑ 209.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
90°F
47°F
15 in
0 in
Chatsworth experiences hot summers with average highs around 90°F. Winters are mild with lows averaging 47°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$837,300
Median Household Income
$117,574
With 14,879 housing units across 32.1 square miles, 91311 has a housing density of 464 units per square mile. The home price-to-income ratio is 7.1x.
Location & Geography
Latitude
34.2925°
Longitude
-118.6024°
Land Area
32.1 sq mi
Water Area
0.9 sq mi
Nearby Zip Codes
Zip codes closest to 91311 (Chatsworth, CA) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 91311's $117,574. A way to compare Chatsworth to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 91311 (Chatsworth, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Chatsworth, California?
Chatsworth, California uses zip code 91311.
What county is zip code 91311 in?
Zip code 91311 is located in Los Angeles County, California.
What is the population of zip code 91311?
The population of zip code 91311 is 40,557 with a median age of 42.3.
Is 91311 in Chatsworth, California?
Yes, zip code 91311 is in Chatsworth, Los Angeles County, California. The area code is 818.
Frequently Asked Questions
What city is zip code 91311 in?
Zip code 91311 is in Chatsworth, California. It is part of Los Angeles County and uses the Pacific (PST/PDT) timezone.
What is zip code 91311?
Zip code 91311 is a U.S. postal code in Chatsworth, California (Los Angeles County). It has a population of 40,557 and covers 32.1 square miles.
What is the population of zip code 91311?
The population of zip code 91311 (Chatsworth, CA) is 40,557 with a median age of 42.3. There are approximately 14,879 housing units in this area.
What is the median income in zip code 91311?
The median household income in zip code 91311 (Chatsworth, CA) is $117,574 per year. The cost of living index is 229 (100 = national average).
What is the average home price in zip code 91311?
The median home value in zip code 91311 (Chatsworth, CA) is $837,300. The cost of living index is 229 compared to the national average of 100.
What county is zip code 91311 in?
Zip code 91311 is located in Los Angeles County, California. The primary city is Chatsworth.
What is the area code for zip code 91311?
Zip code 91311 in Chatsworth, CA uses area code 818. It is located in the Pacific (PST/PDT) timezone.
Is zip code 91311 a good place to live?
Zip code 91311 (Chatsworth, CA) has a cost of living index of 229 (100 = national average), a median household income of $117,574, and median home values of $837,300. The median age is 42.3. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 91311?
The cost of living index for zip code 91311 (Chatsworth, CA) is 229, where 100 represents the national average. This area is above the national average. Median home value: $837,300.
What schools serve zip code 91311?
Zip code 91311 in Chatsworth, California is served by the local school district of Los Angeles County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.