| Place Name | Big River |
| Place Type | Census Designated Place |
| ZIP Code(s) | 92242 |
| County | San Bernardino County |
| Area Code(s) | 442,760 |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 1,202 |
| Population Growth Rate (2010-19) | -18.31% |
| Majority Ethnicity | White 85.41% |
| Metro/Micro Stats Area | Riverside-San Bernardino-Ontario, CA |
| US Congressional District(s) | California 8th |
| State Assembly Districts | 33 |
| State Senate Districts | 16 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 85.41% |
| African American | 0.51% |
| Hispanic | 1.62% |
| Asian | 0.6% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 11.86% |