| Place Name | Cape Royale |
| Place Type | Census Designated Place |
| ZIP Code(s) | 77331 77364 |
| County | San Jacinto County |
| Area Code(s) | 936 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 393 |
| Population Growth Rate (2010-19) | -1.94% |
| Majority Ethnicity | White 90.23% |
| US Congressional District(s) | Texas 8th |
| State House Districts | 18 |
| State Senate Districts | 3 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.23% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 9.77% |