Claim: The western terminus of FM 1764 is at State Highway 6 (Texas's 6th congressional district) in Santa Fe ending at the north of Interstate 45 (I-45) near Texas City.
Evidence: Texas's 6th congressional district of the United States House of Representatives is in an area that includes Ellis and Navarro counties to the south and southeast of the Dallas/Fort Worth area plus the southeast corner of Tarrant County.