| Place Name | San Leon |
| Place Type | Census Designated Place |
| ZIP Code(s) | 77518 77539 |
| County | Galveston County |
| Area Code(s) | 281,346,713,832 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 4,659 |
| Population Growth Rate (2010-19) | 23.44% |
| Majority Ethnicity | White 64.57% |
| Metro/Micro Stats Area | Houston-The Woodlands-Sugar Land, TX |
| US Congressional District(s) | Texas 14th |
| State House Districts | 23 |
| State Senate Districts | 11 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 64.57% |
| African American | 0.57% |
| Hispanic | 0% |
| Asian | 1.78% |
| Native American | 0.15% |
| Hawaiin/Pacific Islander | 32.93% |