Fanning Springs is a city in Gilchrist and Levy counties in the U.S. state of Florida. The population was 764 at the 2010 census.
Fanning Springs is located at 29°35′03″N 82°55′27″W.
According to the United States Census Bureau, the city has a total area of 3.9 square miles (10.2 km2), of which 3.8 square miles (9.8 km2) is land and 0.12 square miles (0.3 km2), or 3.40%, is water.
As of the census of 2000, there were 737 people, 311 households, and 198 families residing in the city. The population density was 207.2 people per square mile (79.9/km2). There were 397 housing units at an average density of 111.6/sq mi (43.1/km2). The racial makeup of the city was 89.01% White, 4.34% African American, 0.68% Native American, 0.54% Asian, 3.66% from other races, and 1.76% from two or more races. Hispanic or Latino of any race were 8.96% of the population.
There were 311 households, out of which 25.4% had children under the age of 18 living with them, 42.8% were married couples living together, 15.8% had a female householder with no husband present, and 36.3% were non-families. 29.3% of all households were made up of individuals, and 12.2% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.84.
In the city, the population was spread out, with 24.7% under the age of 18, 9.5% from 18 to 24, 23.7% from 25 to 44, 25.0% from 45 to 64, and 17.1% who were 65 years of age or older.