| Place Name | Castroville |
| Place Type | City |
| ZIP Code(s) | 78009 |
| County | Medina County |
| Area Code(s) | 830 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 2,711 |
| Population Growth Rate (2010-19) | 10.22% |
| Majority Ethnicity | White 60.87% |
| Metro/Micro Stats Area | San Antonio-New Braunfels, TX |
| US Congressional District(s) | Texas 23rd |
| State House Districts | 53 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 60.87% |
| African American | 0.46% |
| Hispanic | 0% |
| Asian | 1.17% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 37.51% |