 Concho County has the third-highest proportion of prison inmates amongst its residents of any county equivalent in the United States, behind Crowley County, Colorado and Louisiana’s West Feliciana Parish.As a result the county has the highest gender ratio in the United States with 232 men to every 100 women.The 1968 movie "Journey to Shiloh" features a group known as the "Concho County Comanches," and mentions neighboring Menard County.