Estero is a census-designated place (CDP) in Lee County, Florida. As of the 2010 census, the CDP population was 18,176. It is the home of Germain Arena, which hosts the home games for the Florida Everblades ECHL ice hockey team. Florida Gulf Coast University is also located just outside of the Estero Planning District.

The median income for a household in the CDP was $43,734, and the median income for a family was $51,227. Males had a median income of $38,886 versus $27,883 for females. The per capita income for the CDP was $30,521. About 1.9% of families and 3.2% of the population were below the poverty line, including 1.1% of those under age 18 and 3.2% of those age 65 or over.