Zip Code 91791
West Covina, California — Los Angeles County
📍 ZIP code 91791 is in West Covina, Los Angeles County, California.
ZIP code 91791 is located in West Covina, Los Angeles County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 33,321. The area code for ZIP code 91791 is 805.
Quick Answer
Zip code 91791 is in West Covina, California (Los Angeles County). It has a population of 33,321, median household income of $100,365, and median home value of $782,500.
Population
33,321
Income
$100,365
Home Value
$782,500
Climate
90°F / 43°F
About Zip Code 91791
Zip code 91791 is located in West Covina, California, within Los Angeles County. Home to approximately 33,321 residents, this area sits at an elevation of 517 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 805.
The median household income is $100,365 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $782,500, and the cost of living index is 205 (105% above the national average of 100).
Summers average a high of 90°F while winters drop to 43°F. The area receives about 14 in of rain annually. The zip code covers 6.6 square miles of land area.
Key Statistics
33,321
$100,365
$782,500
Pacific (PST/PDT)
805
517 ft
6.6 sq mi
44
11,315
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Compare With Nearby Zip Codes
| Metric | 91791 | 91723 | 91724 | 91790 | 91722 | 91792 |
|---|---|---|---|---|---|---|
| City | West Covina, CA | Covina, CA | Covina, CA | West Covina, CA | Covina, CA | West Covina, CA |
| Population | 33,321 | 18,200 | 28,113 | 44,791 | 34,087 | 30,921 |
| Median Income | $100,365 | $87,363 | $102,129 | $100,142 | $98,033 | $96,383 |
| Home Value | $782,500 | $663,800 | $722,600 | $695,700 | $626,100 | $653,800 |
| Cost of Living | 205 | 180 | 194 | 192 | 177 | 183 |
| Median Age | 44 | 38.1 | 39.1 | 37.6 | 38.6 | 40.5 |
Cost of Living
100 = National Average. West Covina's cost of living is 105% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
7.8x
Demographics
Zip code 91791 has a population of 33,321 people with a median age of 44. There are 11,315 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
West Covina (91791) population trend from 2010 to 2024
↓ -21.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
90°F
43°F
14 in
0 in
West Covina experiences hot summers with average highs around 90°F. Winters are mild with lows averaging 43°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$782,500
Median Household Income
$100,365
With 11,315 housing units across 6.6 square miles, 91791 has a housing density of 1,714 units per square mile. The home price-to-income ratio is 7.8x.
Location & Geography
Latitude
34.0616°
Longitude
-117.8922°
Land Area
6.6 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 91791 (West Covina, CA) with distances:
All Zip Codes in West Covina, CA
Other zip codes serving West Covina:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 91791's $100,365. A way to compare West Covina 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 91791 (West Covina, 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 West Covina, California?
West Covina, California uses zip code 91791 along with 2 other zip codes.
What county is zip code 91791 in?
Zip code 91791 is located in Los Angeles County, California.
What is the population of zip code 91791?
The population of zip code 91791 is 33,321 with a median age of 44.
Is 91791 in West Covina, California?
Yes, zip code 91791 is in West Covina, Los Angeles County, California. The area code is 805.
Frequently Asked Questions
What city is zip code 91791 in?
Zip code 91791 is in West Covina, California. It is part of Los Angeles County and uses the Pacific (PST/PDT) timezone.
What is zip code 91791?
Zip code 91791 is a U.S. postal code in West Covina, California (Los Angeles County). It has a population of 33,321 and covers 6.6 square miles.
What is the population of zip code 91791?
The population of zip code 91791 (West Covina, CA) is 33,321 with a median age of 44. There are approximately 11,315 housing units in this area.
What is the median income in zip code 91791?
The median household income in zip code 91791 (West Covina, CA) is $100,365 per year. The cost of living index is 205 (100 = national average).
What is the average home price in zip code 91791?
The median home value in zip code 91791 (West Covina, CA) is $782,500. The cost of living index is 205 compared to the national average of 100.
What county is zip code 91791 in?
Zip code 91791 is located in Los Angeles County, California. The primary city is West Covina.
What is the area code for zip code 91791?
Zip code 91791 in West Covina, CA uses area code 805. It is located in the Pacific (PST/PDT) timezone.
Is zip code 91791 a good place to live?
Zip code 91791 (West Covina, CA) has a cost of living index of 205 (100 = national average), a median household income of $100,365, and median home values of $782,500. The median age is 44. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 91791?
The cost of living index for zip code 91791 (West Covina, CA) is 205, where 100 represents the national average. This area is above the national average. Median home value: $782,500.
What schools serve zip code 91791?
Zip code 91791 in West Covina, 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.