| Place Name | South El Monte |
| Place Type | City |
| ZIP Code(s) | 91733 |
| County | Los Angeles County |
| Area Code(s) | 626 |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 20,210 |
| Population Growth Rate (2010-19) | -2.73% |
| Majority Ethnicity | Hispanic 0.82% |
| Metro/Micro Stats Area | Los Angeles-Long Beach-Anaheim, CA |
| US Congressional District(s) | California 38th |
| State Assembly Districts | 57 |
| State Senate Districts | 22 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 25.76% |
| African American | 0.45% |
| Hispanic | 0.82% |
| Asian | 12.59% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 60.39% |