Mound Key, located in Estero Bay, is believed to have been the ceremonial center of the
Calusa Indians when they were encountered by the Spanish in the early 1500s. German homesteader Gustave Damkohler began planting mulberry trees in 1882 along the Estero River, followed by others who established fish camps and the region's first citrus groves. In 1894, Damkohler donated property to the followers of
Cyrus Teed, who proposed a theory that people live on the inside of the Earth's outer skin, and that celestial bodies are all contained inside the hollow Earth. This theory, which he called
Koreshan Unity, drew followers to occupy and develop Damkohler's original tract. They were business-oriented and lived communally, prospering enough to found their own political party ("The Progressive Liberty Party") and incorporate the town on September 1, 1904, as Estero. At the behest of other local officials, the Florida legislature abolished the municipality of Estero in 1907. During the 1910 US census, the population was 299. By the 1920 US census, it increased to 340 residents. The Koreshans' original tract is now owned by Florida as the
Koreshan State Historic Site. Access to Estero was greatly improved in the 1920s when
Tamiami Trail, a highway linking Tampa and Miami, and two railroads were built through the area. Tamiami Trail was fully complete in 1928. The
Atlantic Coast Line Railroad (via its
Fort Myers Southern Railroad subsidiary) began service through Estero in 1925. A competing railroad, the
Seaboard Air Line Railroad also built a
rail line through Estero in 1927. Today, the former Atlantic Coast Line tracks are still in place east of US 41 and have been owned by
Seminole Gulf Railway since 1987. The former Seaboard tracks were removed in the 1940s and its former route west of US 41 is now an
FPL power line corridor. Estero incorporated as a village on December 31, 2014. ==Geography==