| Place Name | Port O'Connor |
| Place Type | Census Designated Place |
| ZIP Code(s) | 77982 |
| County | Calhoun County |
| Area Code(s) | 361 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 1,162 |
| Population Growth Rate (2010-19) | -23.86% |
| Majority Ethnicity | White 89.02% |
| Metro/Micro Stats Area | Port Lavaca, TX |
| US Congressional District(s) | Texas 27th |
| State House Districts | 30 |
| State Senate Districts | 18 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 89.02% |
| African American | 0.1% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 10.88% |