Sabula, MissouriSabula is an unincorporated community in southwest Iron County, Missouri, United States. The community is on the east floodplain of Big Creek along Missouri Route 49 between Annapolis to the south and Glover about to the north.HistorySabula was originally called Reynolds, and under the latter name was platted in 1873 when the railroad was extended to that point. A post office called Sabula was established in 1884, and remained in operation until 1953.