Merriam, MinnesotaMerriam was a town in Scott County, in the U.S. state of Minnesota. The town has since been closed altogether.HistoryMerriam was platted in 1866. The community was named for John L. Merriam, a Minnesota legislator. A post office was established at Merriam in 1872, closed in 1873, reopened in 1879, and closed permanently in 1905.