Jefferson County is a county located in the U.S. state of Florida. As of the most recent data available, the county has a population of approximately 12,902 people, with a population density of about 21.58 persons per square mile.
The county spans a total land area of 598.00 square miles (1,549.00 square kilometers). The administrative center and county seat is Monticello, which often serves as a hub for local governance and services. The largest city within the county by population is Wacissa.
Geographically, Jefferson County experiences varied elevations, with its highest point at Monticello 235 ft and its lowest point at Wacissa 29 ft. The region operates in the UTC-5.