Zip Code 91342
Sylmar, California — Los Angeles County
📍 ZIP code 91342 is in Sylmar, Los Angeles County, California.
ZIP code 91342 is located in Sylmar, Los Angeles County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 93,513. The area code for ZIP code 91342 is 818.
Quick Answer
Zip code 91342 is in Sylmar, California (Los Angeles County). It has a population of 93,513, median household income of $95,480, and median home value of $641,100.
Population
93,513
Income
$95,480
Home Value
$641,100
Climate
87°F / 45°F
About Zip Code 91342
Zip code 91342 is located in Sylmar, California, within Los Angeles County. Home to approximately 93,513 residents, this area sits at an elevation of 3188 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 818.
The median household income is $95,480 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $641,100, and the cost of living index is 177 (77% above the national average of 100).
Summers average a high of 87°F while winters drop to 45°F. The area receives about 14 in of rain annually. The zip code covers 55.3 square miles of land area and 0.1 square miles of water.
Key Statistics
93,513
$95,480
$641,100
Pacific (PST/PDT)
818
3188 ft
55.3 sq mi
37.4
26,403
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Compare With Nearby Zip Codes
| Metric | 91342 | 91340 | 91040 | 91331 | 91345 | 91352 |
|---|---|---|---|---|---|---|
| City | Sylmar, CA | Sylmar, CA | Sunland, CA | Pacoima, CA | San Fernando, CA | Burbank, CA |
| Population | 93,513 | 33,750 | 21,436 | 98,820 | 18,282 | 46,153 |
| Median Income | $95,480 | $79,124 | $104,719 | $82,025 | $96,345 | $74,621 |
| Home Value | $641,100 | $624,900 | $787,000 | $609,300 | $654,100 | $700,100 |
| Cost of Living | 177 | 167 | 214 | 166 | 182 | 177 |
| Median Age | 37.4 | 36.4 | 43.3 | 34.7 | 42.3 | 37.2 |
Cost of Living
100 = National Average. Sylmar's cost of living is 77% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
6.7x
Demographics
Zip code 91342 has a population of 93,513 people with a median age of 37.4. There are 26,403 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Sylmar (91342) population trend from 2010 to 2024
↑ 2.7%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
87°F
45°F
14 in
0 in
Sylmar experiences warm summers with average highs around 87°F. Winters are mild with lows averaging 45°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$641,100
Median Household Income
$95,480
With 26,403 housing units across 55.3 square miles, 91342 has a housing density of 477 units per square mile. The home price-to-income ratio is 6.7x.
Location & Geography
Latitude
34.3266°
Longitude
-118.3823°
Land Area
55.3 sq mi
Water Area
0.1 sq mi
Nearby Zip Codes
Zip codes closest to 91342 (Sylmar, CA) with distances:
All Zip Codes in Sylmar, CA
Other zip codes serving Sylmar:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 91342's $95,480. A way to compare Sylmar 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 91342 (Sylmar, 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 Sylmar, California?
Sylmar, California uses zip code 91342 along with 3 other zip codes.
What county is zip code 91342 in?
Zip code 91342 is located in Los Angeles County, California.
What is the population of zip code 91342?
The population of zip code 91342 is 93,513 with a median age of 37.4.
Is 91342 in Sylmar, California?
Yes, zip code 91342 is in Sylmar, Los Angeles County, California. The area code is 818.
Frequently Asked Questions
What city is zip code 91342 in?
Zip code 91342 is in Sylmar, California. It is part of Los Angeles County and uses the Pacific (PST/PDT) timezone.
What is zip code 91342?
Zip code 91342 is a U.S. postal code in Sylmar, California (Los Angeles County). It has a population of 93,513 and covers 55.3 square miles.
What is the population of zip code 91342?
The population of zip code 91342 (Sylmar, CA) is 93,513 with a median age of 37.4. There are approximately 26,403 housing units in this area.
What is the median income in zip code 91342?
The median household income in zip code 91342 (Sylmar, CA) is $95,480 per year. The cost of living index is 177 (100 = national average).
What is the average home price in zip code 91342?
The median home value in zip code 91342 (Sylmar, CA) is $641,100. The cost of living index is 177 compared to the national average of 100.
What county is zip code 91342 in?
Zip code 91342 is located in Los Angeles County, California. The primary city is Sylmar.
What is the area code for zip code 91342?
Zip code 91342 in Sylmar, CA uses area code 818. It is located in the Pacific (PST/PDT) timezone.
Is zip code 91342 a good place to live?
Zip code 91342 (Sylmar, CA) has a cost of living index of 177 (100 = national average), a median household income of $95,480, and median home values of $641,100. The median age is 37.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 91342?
The cost of living index for zip code 91342 (Sylmar, CA) is 177, where 100 represents the national average. This area is above the national average. Median home value: $641,100.
What schools serve zip code 91342?
Zip code 91342 in Sylmar, 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.