Where is Dennis, Texas?Dennis, Texas is located at Latitude 32.618611 and Longitude -97.926389. Dennis is in the Central (GMT -06:00) time zone. Telephone area codes in Dennis include 940. This hometown does use daylight savings time. Dennis, Texas is situated in Parker County. Parker County has an average elevation of 1053 feet. Please explore this site for detailed population, demographic and housing data for Dennis, Texas and Parker County. |