| Place Name | Reliez Valley |
| Place Type | Census Designated Place |
| ZIP Code(s) | 94523 94549 94553 94597 |
| County | Contra Costa County |
| Area Code(s) | 925 |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 3,337 |
| Population Growth Rate (2010-19) | 8.16% |
| Majority Ethnicity | White 78.72% |
| Metro/Micro Stats Area | San Francisco-Oakland-Berkeley, CA |
| US Congressional District(s) | California 11th |
| State Assembly Districts | 14 |
| State Senate Districts | 7 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 78.72% |
| African American | 0.23% |
| Hispanic | 0% |
| Asian | 14.66% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.38% |