Citrus County was created in 1887. The Citrus County area was formerly part of a Hernando County. It was named for the county's citrus trees.Citrus County also has within its territorial boundaries a number of uninhabited and/or sparsely inhabited coastal islands that can be accessed via watercraft. While some of the Citrus County islands are state lands thus available for public use for recreational opportunities, many other Citrus County islands are private property and are either wholly or partially owned by private parties. A number of the interior islands have private vacation homes and cabins situated along the waterfront.
Citrus County's most significant tourist draw is that it is currently the only place in the United States where one can interact and swim with the West Indian manatee. This endangered species makes Citrus County's spring-fed rivers its wintering home. According to the US Fish & Wildlife Services' Aerial Manatee Surveys, as many as 400 of these unique creatures can be found in Citrus County at one time. This typically occurs only during the coldest months of the year.