The breeding habitat of Grasshopper Sparrows is open fields and prairie across southern Canada, eastern and central United States, Mexico, and Central America. The northern populations migrate to the southern United States, Mexico, Central America, and the Caribbean during the colder months. Most of these birds seen in Florida during the winter months are migratory birds.
There are twelve recognized subspecies of the Grasshopper Sparrow. Four breed in North America, four in Mexico and Central America, and four in the Caribbean. One of these subspecies, the Florida Grasshopper Sparrow, breeds only in Florida. It occurs in the dry prairies of the Kissimmee River Basin. This subspecies is classified as Endangered by the U.S. Fish and Wildlife Service and the Florida Fish and Wildlife Conservation Commission. Their estimated population is fewer than 1,000 birds.