| Place Name | Westmont |
| Place Type | Census Designated Place |
| ZIP Code(s) | 90044 90047 90250 |
| County | Los Angeles County |
| Area Code(s) | 213,323 |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 30,483 |
| Population Growth Rate (2010-19) | 6.47% |
| Majority Ethnicity | Hispanic 0.45% |
| Metro/Micro Stats Area | Los Angeles-Long Beach-Anaheim, CA |
| US Congressional District(s) | California 43rd |
| State Assembly Districts | 62 |
| State Senate Districts | 30 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 21.03% |
| African American | 29.6% |
| Hispanic | 0.45% |
| Asian | 0.58% |
| Native American | 0.63% |
| Hawaiin/Pacific Islander | 47.71% |