| Place Name | Oak Glen |
| Place Type | Census Designated Place |
| ZIP Code(s) | 92339 92359 92399 |
| County | San Bernardino County |
| Area Code(s) | 909 |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 825 |
| Population Growth Rate (2010-19) | -5.64% |
| Majority Ethnicity | White 90.15% |
| Metro/Micro Stats Area | Riverside-San Bernardino-Ontario, CA |
| US Congressional District(s) | California 8th |
| State Assembly Districts | 42 |
| State Senate Districts | 23 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.15% |
| African American | 7.3% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.55% |