Frog City is a village within the Town of Johnston, Rhode Island which overlaps another village, Thornton, Rhode Island. According to one source, the village was "probably termed Frog City because of the numerous frogs along the Pocasset River and ponds near Victoria Mill at Mill Street and Victoria Mount". Frog City is bordered by Mill St. to the North, Plainfield Pike to the East and South, and Rachela St. to the West.