Residential delivery area · California
ZIP Code 91321: Newhall, CA
ZIP code 91321 uses the postal name Newhall, California and lies entirely in Los Angeles County (Census 2020 ZIP-county file). About 32,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $91,092 (Census Bureau, ACS 2020-2024). Most of its land (51%) lies in the city of Santa Clarita.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Newhall · its only residential ZIP
- County
- Los Angeles County
- Census places
- Santa Clarita
- Neighborhoods
- Elayon, Waltz GeoNames
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House district
- CA-27 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 26.7 sq mi · 1,200 people per sq mi
- PO Box ZIPs
- 91322 also use the name Newhall
Where is ZIP code 91321?
91321 centers on 34.364°, -118.487° and covers 26.7 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 91350, 91351, 91355, 91342, 91381, 91387.
The map draws ZIP code areas only. For the streets inside 91321, 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 91321 compare with the rest of Los Angeles County?
| Measure | 91321 | In Los Angeles County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 31,989 | 148th of 301 | 565th of 1,802 |
| Median household income | $91k | 147th of 265 | 690th of 1,189 |
| Median home value | $692k | 206th of 273 | 689th of 1,317 |
Its median household income is higher than in 74% 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 91321?
The 2020 Census counted 33,560 people in 91321; the ACS, which samples households over 2020-2024, estimates 31,989. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 31,989
- 2020 Census count
- 33,560
- Households
- 10,863
- Median age
- 36.5
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 91321?
Of the 31,989 people the ACS estimates in 91321, 24.4% are under 18 and 15.4% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (52.9%), then White (not Hispanic) (31.9%).
- Under 1824.4%
- 18 to 6460.2%
- 65 and older15.4%
- Hispanic or Latino52.9%
- White, not Hispanic31.9%
- Asian, not Hispanic8.9%
- Other or two or more4.1%
- Black, not Hispanic2.2%
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 91321 earn?
Median household income is $91,092 (ACS 2020-2024), the 147th highest of the 265 ranked ZIP codes in Los Angeles County.
- Median household income
- $91,092
- Income per person
- $41,866
- Below the poverty line
- 9.6%
- Unemployed (of the labor force)
- 5.4%
- Adults 25+ with a bachelor's degree
- 32.4%
- Adjusted gross income per tax return, 2022
- $79,60015,540 returns; wages 71% 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 91321?
FHFA's house price index for 91321, built from repeat sales and appraisals of the same homes, rose 80% from 2015 to 2025 and rose 40% from 2020 to 2025, and moved −0.1% in 2025.
- Median home value (owners' estimate)
- $691,600
- Median gross rent
- $2,134
- Homes owned by their occupants
- 60.8%
- Housing units
- 11,338
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 91321?
882 business establishments had a location in this ZIP code in 2023, 113 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance157
- Accommodation and food services95
- Professional, scientific, and technical services94
- Other services (except public administration)91
- Retail trade87
- Construction81
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 91321?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91350 | Santa Clarita | 43,973 | $140k | 4.7 mi |
| 91351 | Canyon Country | 33,155 | $115k | 5.1 mi |
| 91355 | Valencia | 29,123 | $116k | 5.4 mi |
| 91342 | Sylmar | 93,301 | $98k | 6.5 mi |
| 91381 | Stevenson Ranch | 22,582 | $159k | 6.9 mi |
| 91387 | Canyon Country | 46,869 | $118k | 7.5 mi |
| 91344 | Granada Hills | 52,890 | $119k | 5.2 mi (near) |
| 91340 | San Fernando | 33,424 | $85k | 6.1 mi (near) |
| 91326 | Porter Ranch | 38,428 | $148k | 6.9 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 Newhall?
1 more ZIP code carries the postal name Newhall, 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 |
|---|---|
| 91322 | 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.