Spring Arbor is an unincorporated community within Spring Arbor Township, Jackson County in the U.S. state of Michigan. The U.S. Census Bureau has defined a census-designated place (CDP) with the same name for statistical purposes. The CDP has no official status as a municipality and the boundaries defined by the Census Bureau may not precisely correspond to local understanding of the Spring Arbor area. The population of the CDP was 2,188 at the 2000 census.