Zip Code 91321
Newhall, California — Los Angeles County
📍 ZIP code 91321 is in Newhall, Los Angeles County, California.
ZIP code 91321 is located in Newhall, Los Angeles County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 32,668. The area code for ZIP code 91321 is 818.
Quick Answer
Zip code 91321 is in Newhall, California (Los Angeles County). It has a population of 32,668, median household income of $93,281, and median home value of $654,300.
Population
32,668
Income
$93,281
Home Value
$654,300
Climate
94°F / 47°F
About Zip Code 91321
Zip code 91321 is located in Newhall, California, within Los Angeles County. Home to approximately 32,668 residents, this area sits at an elevation of 1650 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 818.
The median household income is $93,281 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $654,300, and the cost of living index is 174 (74% above the national average of 100).
Summers average a high of 94°F while winters drop to 47°F. The area receives about 17 in of rain annually. The zip code covers 25.9 square miles of land area.
Key Statistics
32,668
$93,281
$654,300
Pacific (PST/PDT)
818
1650 ft
25.9 sq mi
34.7
11,257
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Compare With Nearby Zip Codes
| Metric | 91321 | 91350 | 91351 | 91344 | 91340 | 91342 |
|---|---|---|---|---|---|---|
| City | Newhall, CA | Santa Clarita, CA | Santa Clarita, CA | Sylmar, CA | Sylmar, CA | Sylmar, CA |
| Population | 32,668 | 43,621 | 33,553 | 53,248 | 33,750 | 93,513 |
| Median Income | $93,281 | $135,612 | $112,888 | $116,647 | $79,124 | $95,480 |
| Home Value | $654,300 | $733,000 | $589,400 | $872,000 | $624,900 | $641,100 |
| Cost of Living | 174 | 220 | 175 | 233 | 167 | 177 |
| Median Age | 34.7 | 38 | 38 | 43.5 | 36.4 | 37.4 |
Cost of Living
100 = National Average. Newhall's cost of living is 74% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
7.0x
Demographics
Zip code 91321 has a population of 32,668 people with a median age of 34.7. There are 11,257 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Newhall (91321) population trend from 2010 to 2024
↓ -47.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
94°F
47°F
17 in
0 in
Newhall experiences hot summers with average highs around 94°F. Winters are mild with lows averaging 47°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$654,300
Median Household Income
$93,281
With 11,257 housing units across 25.9 square miles, 91321 has a housing density of 435 units per square mile. The home price-to-income ratio is 7.0x.
Location & Geography
Latitude
34.3682°
Longitude
-118.4891°
Land Area
25.9 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 91321 (Newhall, CA) with distances:
All Zip Codes in Newhall, CA
Other zip codes serving Newhall:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 91321's $93,281. A way to compare Newhall 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 91321 (Newhall, 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 Newhall, California?
Newhall, California uses zip code 91321 along with 1 other zip codes.
What county is zip code 91321 in?
Zip code 91321 is located in Los Angeles County, California.
What is the population of zip code 91321?
The population of zip code 91321 is 32,668 with a median age of 34.7.
Is 91321 in Newhall, California?
Yes, zip code 91321 is in Newhall, Los Angeles County, California. The area code is 818.
Frequently Asked Questions
What city is zip code 91321 in?
Zip code 91321 is in Newhall, California. It is part of Los Angeles County and uses the Pacific (PST/PDT) timezone.
What is zip code 91321?
Zip code 91321 is a U.S. postal code in Newhall, California (Los Angeles County). It has a population of 32,668 and covers 25.9 square miles.
What is the population of zip code 91321?
The population of zip code 91321 (Newhall, CA) is 32,668 with a median age of 34.7. There are approximately 11,257 housing units in this area.
What is the median income in zip code 91321?
The median household income in zip code 91321 (Newhall, CA) is $93,281 per year. The cost of living index is 174 (100 = national average).
What is the average home price in zip code 91321?
The median home value in zip code 91321 (Newhall, CA) is $654,300. The cost of living index is 174 compared to the national average of 100.
What county is zip code 91321 in?
Zip code 91321 is located in Los Angeles County, California. The primary city is Newhall.
What is the area code for zip code 91321?
Zip code 91321 in Newhall, CA uses area code 818. It is located in the Pacific (PST/PDT) timezone.
Is zip code 91321 a good place to live?
Zip code 91321 (Newhall, CA) has a cost of living index of 174 (100 = national average), a median household income of $93,281, and median home values of $654,300. The median age is 34.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 91321?
The cost of living index for zip code 91321 (Newhall, CA) is 174, where 100 represents the national average. This area is above the national average. Median home value: $654,300.
What schools serve zip code 91321?
Zip code 91321 in Newhall, 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.