Falmouth is an unincorporated community located in Suwannee County, Florida, United States. There is one recreational area, known as Falmouth Spring. Falmouth Spring is a first-magnitude spring flowing about 160 cubic feet per second. It is located within a 276-acre recreation area managed by the Suwannee River Water Management District. The majority of the area is sandhill and upland mixed forest, with some slash pine.