Alma is the largest city in Gratiot County in the U.S. state of Michigan. The population was 9,383 at the 2010 census. It was incorporated as the Village of Alma in 1872 and became a city in 1905.Alma's claims to fame include the annual Highland Festival which brings members of Scottish clans and interested onlookers together for a weekend of Highland dancing, bagpipes, kilts, and camaraderie. The Highland Festival is held each year over Memorial Day weekend.