Residential delivery area · California
ZIP Code 91342: Sylmar, CA
ZIP code 91342 uses the postal name Sylmar, California and lies entirely in Los Angeles County (Census 2020 ZIP-county file). About 93,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $98,118 (Census Bureau, ACS 2020-2024). By Census place, 38% of its land lies in Los Angeles; 61% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Sylmar · its only residential ZIP
- County
- Los Angeles County
- Census places
- Los Angeles
- Neighborhoods
- Hansen Dam, Lake View Terrace, Olive View GeoNames
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House districts
- CA-29 (76%), CA-27 (17%), CA-30 (7%) 119th Congress, by share of land
- State
- California
- Time zone
- Pacific
- Land area
- 45.4 sq mi · 2,053 people per sq mi
- PO Box ZIPs
- 91392 also use the name Sylmar
Where is ZIP code 91342?
91342 centers on 34.327°, -118.382° and covers 45.4 square miles of land plus 0.0 of water. It borders 9 ZIP codes: 91340, 91331, 91387, 91040, 91345, 91321, 91042, 91344, 91381.
The map draws ZIP code areas only. For the streets inside 91342, 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 91342 compare with the rest of Los Angeles County?
| Measure | 91342 | In Los Angeles County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 93,301 | 6th of 301 | 9th of 1,802 |
| Median household income | $98k | 125th of 265 | 603rd of 1,189 |
| Median home value | $696k | 203rd of 273 | 684th of 1,317 |
Its median household income is higher than in 80% of U.S. residential ZIP codes, and it is denser than 85% 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 91342?
The 2020 Census counted 96,429 people in 91342; the ACS, which samples households over 2020-2024, estimates 93,301. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 93,301
- 2020 Census count
- 96,429
- Households
- 25,537
- Median age
- 37.5
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 91342?
Of the 93,301 people the ACS estimates in 91342, 23.1% are under 18 and 13.2% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (73.2%), then White (not Hispanic) (12.3%).
- Under 1823.1%
- 18 to 6463.7%
- 65 and older13.2%
- Hispanic or Latino73.2%
- White, not Hispanic12.3%
- Asian, not Hispanic7.8%
- Black, not Hispanic3.8%
- Other or two or more3.0%
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 91342 earn?
Median household income is $98,118 (ACS 2020-2024), the 125th highest of the 265 ranked ZIP codes in Los Angeles County.
- Median household income
- $98,118
- Income per person
- $32,744
- Below the poverty line
- 12.0%
- Unemployed (of the labor force)
- 7.5%
- Adults 25+ with a bachelor's degree
- 20.8%
- Adjusted gross income per tax return, 2022
- $60,80543,820 returns; wages 83% 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 91342?
FHFA's house price index for 91342, built from repeat sales and appraisals of the same homes, rose 100% from 2015 to 2025 and rose 43% from 2020 to 2025, and moved +3.3% in 2025.
- Median home value (owners' estimate)
- $695,600
- Median gross rent
- $1,963
- Homes owned by their occupants
- 67.8%
- Housing units
- 26,533
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 91342?
1,314 business establishments had a location in this ZIP code in 2023, 221 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction290
- Retail trade125
- Health care and social assistance114
- Accommodation and food services101
- Transportation and warehousing99
- Administrative and support and waste management and remediation services98
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 91342?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91340 | San Fernando | 33,424 | $85k | 4.1 mi |
| 91331 | Pacoima | 97,608 | $84k | 5.4 mi |
| 91387 | Canyon Country | 46,869 | $118k | 5.4 mi |
| 91040 | Sunland | 20,821 | $98k | 5.4 mi |
| 91345 | Mission Hills | 18,714 | $94k | 6.0 mi |
| 91321 | Newhall | 31,989 | $91k | 6.5 mi |
| 91042 | Tujunga | 26,928 | $86k | 6.7 mi |
| 91344 | Granada Hills | 52,890 | $119k | 7.4 mi |
| 91381 | Stevenson Ranch | 22,582 | $159k | 13.3 mi |
| 91352 | Sun Valley | 46,899 | $78k | 6.7 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 Sylmar?
1 more ZIP code carries the postal name Sylmar, 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 | County |
|---|---|
| 91392 | Los 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.