Faith is a city in the northeastern corner of Meade County, South Dakota, United States. The population was 367 at the 2020 census. The mos…Faith is a city in the northeastern corner of Meade County, South Dakota, United States. The population was 367 at the 2020 census. The most complete Tyrannosaurus rex skeleton known, Sue, was discovered approximately 15 miles northeast of Faith in August 1990.