Below is a list of Port O Connor TX zip codes. For your research we have also included Port O Connor Area Code, Time Zone, UTC and the local Calhoun County FIPS Code. Each Port O Connor Texas zip code has a center Longitude / Latitude point (the Port O Connor center is -96.643798828125 / 28.228300094604). For your convenience we have also indicated if that zip code in Port O Connor observes Daylight Savings time.