Catlin, IndianaCatlin is an unincorporated community in the northwest corner of Raccoon [Township, Parke County, Indiana|Raccoon Township], Parke [County, Indiana|Parke County], in the U.S. state of Indiana.HistoryA post office was established at Catlin in 1861, and remained in operation until 1965. Hiram Catlin, an early settler, gave the community its name.