
Founded 1894.
By medium George P. Colby, who had homesteaded the land in 1875 and deeded 35 acres in 1894 to form the Southern Cassadaga Spiritualist Camp Meeting Association.
Source: Wikipedia [S65].

Quick answer: The Cassadaga Spiritualist Camp, about 10 minutes northeast of DeLand, Florida, was founded in 1894 by medium George P. Colby. It is the oldest active religious community in the Southeast, listed on the National Register of Historic Places, and open to visitors for historic tours and certified-medium readings.
Cassadaga's founding is one of the most distinctive origin stories in Florida. The short version: George P. Colby, a medium from Cassadaga, New York, was (per camp tradition) led to this Central Florida site by his Native American spirit guide "Seneca." Colby homesteaded the land in 1875 and deeded 35 acres in 1894 to form the Southern Cassadaga Spiritualist Camp Meeting Association [S65, S66].
The camp grew from a seasonal tent meeting into a permanent village of cottages, a hotel, a bookstore, and a meeting hall — the architectural footprint now recognized on the National Register [S65].

By medium George P. Colby, who had homesteaded the land in 1875 and deeded 35 acres in 1894 to form the Southern Cassadaga Spiritualist Camp Meeting Association.
Source: Wikipedia [S65].

The Cassadaga Historic District is federally recognized on the U.S. National Register of Historic Places.
Source: Wikipedia [S65].

Certified practitioners live and work on-site; readings are available by appointment through the camp directory.
Source: Cassadaga Camp [S66].
Cassadaga rounds out the West Volusia heritage day: DeLand's Stetson-era mansion, Stetson University, and downtown historic district pair naturally with a late-afternoon walk through the Cassadaga Historic District. It's the oldest surviving intentional religious community in the Southeast, and it happens to sit next door to Florida's oldest private college town. Neither Mount Dora nor Winter Park can match that combination.