What is the population of Sullivan, Missouri?
The population of Sullivan, Missouri was 6,351 at the 2000 census. Stephen Sullivan founded the city in the late 1850s and cleared brush, which facilitated the building of the railway depot there, and the railroad named the town and station after him in 1860. In 1856, when a post office was established in present-day Sullivan, the local postmaster named the place “Mount Helicon”. This short-lived name was after an actual mountain in Greece that was the mythical sanctuary of the Muses.
