| Official Name: | Port O'Connor, Texas |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Texas#USA |
| Pushpin Label: | Port O'Connor |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Texas |
| Subdivision Type2: | County |
| Subdivision Name2: | Calhoun |
| Unit Pref: | Imperial |
| Area Total Km2: | 16.4 |
| Area Land Km2: | 10.3 |
| Area Water Km2: | 6.0 |
| Population As Of: | 2010 |
| Population Footnotes: | [1] |
| Population Total: | 1253 |
| Population Density Km2: | 121.3 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 7 |
| Coordinates: | 28.4464°N -96.4206°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 77982 |
| Area Code: | 361 |
| Blank Name: | FIPS code |
| Blank Info: | 48-58952 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2586973 |
Port O'Connor is an unincorporated community and census-designated place (CDP) in Calhoun County, Texas, United States, near the Gulf coastline between Galveston and Corpus Christi. The CDP had a population of 1,253 at the 2010 census.[1] It is part of the Victoria, Texas metropolitan statistical area.
Port O'Connor was laid out in the late 19th century as a fishing settlement called "Alligator Head". As it grew in popularity with both permanent residents and tourists, the community took on more municipal characteristics, earning the formal designation finally in 1909 as the town site of Port O'Connor. It was named after its main landowner at the time, Thomas M. O'Connor, son of Thomas O'Connor, who owned 70000acres. Aside from local cattle raising and fishing, the town was also a producer of figs and citrus fruit.
Its initial population growth spanned the years 1909 to 1919. Excursion trains ran on weekends to Port O'Connor, and an estimated 10,000 tourists came every summer.
Port O'Connor has been struck by four hurricanes since it was initially settled. The 1919 Florida Keys hurricane brought the "good old days" to a halt, destroying the town. It rebuilt slowly, but the 1942 and 1945 hurricanes so close in time were hard to overcome. In 1961, Port O'Connor was in the midst of another growth boom due to the increase of military personnel on nearby Matagorda Island Air Force Base.[2] That same year, Hurricane Carla destroyed the town again, but times reflect its will to survive, fueled by tourism, commercial fisheries, and the petrochemical industry. Hurricane Harvey struck the town again in 2017.
Port O'Connor first appeared as a census designated place in the 1980 U.S. Census.
| White (NH) | 790 | 82.81% | |
| Black or African American (NH) | 1 | 0.1% | |
| Native American or Alaska Native (NH) | 3 | 0.31% | |
| Asian (NH) | 1 | 0.1% | |
| Some Other Race (NH) | 2 | 0.21% | |
| Mixed/Multi-Racial (NH) | 22 | 2.31% | |
| Hispanic or Latino | 135 | 14.15% | |
| Total | 954 |
Port O'Connor is served by the Calhoun County Independent School District.
Due to its small population, the town has only one school, Port O'Connor Elementary School, which has the dolphin as its mascot. Port O'Connor Elementary School covers prekindergarten through grade five.[4] Children are then bused to the nearby town of Seadrift or to Port Lavaca to finish their sixth- through 12th-grade educations. The secondary schools that serve Port O'Connor are Seadrift Middle School, Travis Middle School, and Calhoun High School.