| Place Name | Rainbow |
| Place Type | Census Designated Place |
| ZIP Code(s) | 92028 |
| County | San Diego County |
| Area Code(s) | 442,760 |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 1,923 |
| Population Growth Rate (2010-19) | 2.84% |
| Majority Ethnicity | White 61.96% |
| Metro/Micro Stats Area | San Diego-Chula Vista-Carlsbad, CA |
| US Congressional District(s) | California 50th |
| State Assembly Districts | 75 |
| State Senate Districts | 38 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 61.96% |
| African American | 0.84% |
| Hispanic | 0.34% |
| Asian | 4.96% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 31.9% |