| Place Name | Petronila |
| Place Type | City |
| ZIP Code(s) | 78343 78380 |
| County | Nueces County |
| Area Code(s) | 361 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 125 |
| Population Growth Rate (2010-19) | -21.24% |
| Majority Ethnicity | White 53.33% |
| Metro/Micro Stats Area | Corpus Christi, TX |
| US Congressional District(s) | Texas 27th |
| State House Districts | 34 |
| State Senate Districts | 20 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 53.33% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 4.44% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 42.22% |