Simms is an unincorporated community and census-designated place (CDP) in Muskogee County, Oklahoma, United States. The population was 261 as of the 2020 census,
Geography
Simms is in southeastern Muskogee County, northeast of Porum and south of Webbers Falls. The Canadian River passes less than a mile south of the southern border of the community, from its mouth at the Arkansas River. Muskogee, the county seat, is to the north-northwest.
According to the U.S. Census Bureau, the CDP has a total area of , all land.