Where is O Brien, Texas?O Brien, Texas is located at Latitude 33.367238 and Longitude -99.85455. O Brien is in the Central (GMT -06:00) time zone. Telephone area codes in O Brien include 940. This hometown does use daylight savings time. O Brien, Texas is situated in Haskell County. Haskell County has an average elevation of 1585 feet. Please explore this site for detailed population, demographic and housing data for O Brien, Texas and Haskell County. |