Humphreys County is a county located in the U.S. state of Mississippi. As of the 2020 census, the population was 7,785. Its county seat is Belzoni. The county is named for Benjamin G. Humphreys. Humphreys County is Mississippi's newest county, having been formed in 1918. Humphreys County is located in the Mississippi Delta region. It was named 'Farm-Raised Catfish Capital of the World' in 1976 by then Governor Cliff Finch, since it produced more farm-raised catfish than any other U.S. county.