Westmont, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Westmont, California is 34,291 as of the 2023 American Community Survey, making it the 243rd-largest city in California. The median household income is $47,899, the median home value is $617,300, and the median age is 32.9.
34,291
Population
18566
People / sq mi
$47,899
Median Income
$617,300
Median Home Value
Get Westmont's next ACS population data
Subscribe for Population Review updates by email. No spam, unsubscribe anytime.
Westmont covers 1.8 sq mi of land at 18566 people per square mile.
About Westmont, CA
Westmont stands apart on settlement density — it is among the most densely settled of US cities, at roughly 18,566 people per square mile. With 34,291 residents, Westmont is a city in California.
Money is tight relative to the rest of US cities: the median household earns just $47,899, below the US median of $78,538. The poverty rate, 23.1%, is among the steepest of comparable US cities and above the national 12.4%. The median home value is $617,300, with typical rent around $1,413.
Westmont is among the least college-educated US cities, at 12.7% — below the national 35.0%. Most workers commute: only 7.1% work from home, below the national 14.0%, and the average commute runs about 34 minutes each way.
That density explains much of the rest of the profile in Westmont: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Race & Ethnicity
| White | 12.1% |
| Black or African American | 35.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.6% |
| Two or More Races | 0.0% |
Economy & Income
$47,899
Median Household Income
$22,544
Per Capita Income
23.1%
Poverty Rate
7.0%
Unemployment Rate
Housing
$617,300
Median Home Value
$1,413
Median Rent
28.3%
Owner-Occupied
Education
70.9%
High School+
12.7%
Bachelor's+
Commute
8.4%
Drive Alone
66.9%
Public Transit
7.1%
Work From Home
34.2 min
Avg Commute
Community Profile
10.3%
Foreign Born
44.8%
Non-English at Home
3.4%
Veterans
15.7%
With Disability
86.5%
Health Insurance
94.1%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 20.8% |
| Finance, Insurance & Real Estate | 11.6% |
| Education, Health Care & Social Services | 10.9% |
| Retail Trade | 9.8% |
| Construction | 9.5% |
| Manufacturing | 7.5% |
| Public Administration | 5.9% |
| Arts, Entertainment & Food Services | 4.6% |
| Information | 2.2% |
| Agriculture & Mining | 1.0% |
| Transportation & Warehousing | 0.4% |
Largest cities in California
Largest counties in California
Part of California
Metro areas in California
City rankings
Frequently Asked Questions
Westmont, California has a population of 34,291 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 243rd-largest city in California.
The median household income in Westmont, California is $47,899, with 23.1% of residents living below the federal poverty level.
The median home value in Westmont, California is $617,300, with median monthly rent at $1,413 and a homeownership rate of 28.3%.
The median age in Westmont, California is 32.9 years. The population is 47.3% male and 52.7% female.
Where to stay in Westmont
Visiting or relocating to Westmont, CA? Compare hotels and short-term rentals across the metro — live availability and prices.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
More from California
Population 3,857,897
Population 1,385,061
Population 990,054
Population 836,321
Population 543,615
Full rankings of California cities by population
Statewide data for California
Population, race, income, age, and trends across California
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.