| Place Name | Antioch |
| Place Type | City |
| ZIP Code(s) | 94509 94531 |
| County | Contra Costa County |
| Area Code(s) | 925 |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 102,575 |
| Population Growth Rate (2010-19) | 12.62% |
| Majority Ethnicity | White 34.18% |
| Metro/Micro Stats Area | San Francisco-Oakland-Berkeley, CA |
| US Congressional District(s) | California 9thCalifornia 11th |
| State Assembly Districts | 11 |
| State Senate Districts | 7 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 34.18% |
| African American | 18.85% |
| Hispanic | 0.94% |
| Asian | 11.97% |
| Native American | 1.27% |
| Hawaiin/Pacific Islander | 32.79% |