Sheffield is located west of
Sonora and east of
Fort Stockton on Hwy 349 just off I-10, in
Pecos County. The site, near a ford in the Pecos River and Pecos Spring, was long a stopping point for nomadic Indians.
Although I-10 bypassed it in the early 1980s, the town continued to thrive. In 1985 Sheffield had several stores and restaurants, an elementary school, three churches, and a population of 300. In 2000 the community had fifteen businesses and a population of 600.