Sulphur Bluff is an unincorporated community in northeastern Hopkins County, Texas, United States.[1]
Despite being unincorporated, Sulphur Bluff has its own post office, assigned the ZIP code of 75481.
Hopkins County used to be the dairy capital until recently.[citation needed] The Sulphur Bluff Independent School District serves area students.
Its population was approximately 280 in 1990.