Zellwood is a census-designated place and an unincorporated area in Orange County, Florida, United States. The population was 2,817 at the 2010 census. It is part of the Orlando–Kissimmee Metropolitan Statistical Area.
Zellwood is located at 28°43′26″N 81°35′36″W (28.723839, −81.593219).
According to the United States Census Bureau, the CDP has a total area of 10.5 km2 (4.1 mi2), of which 10.1 km2 (3.9 mi2) is land and 0.5 km2 (0.2 mi2) (4.42%) is water.
As of the census of 2000, there were 2,540 people, 1,239 households, and 795 families residing in the CDP. The population density was 252.1/km2 (653.3/mi2). There were 1,409 housing units at an average density of 139.9/km2 (362.4/mi2). The racial makeup of the CDP was 93.62% White, 2.83% African American, 0.31% Native American, 0.04% Asian, 2.09% from other races, and 1.10% from two or more races. Hispanic or Latino of any race were 9.09% of the population.
There were 1,239 households, out of which 9.5% had children under the age of 18 living with them, 55.8% were married couples living together, 5.6% had a female householder with no husband present, and 35.8% were non-families. 32.1% of all households were made up of individuals, and 23.8% had someone living alone who was 65 years of age or older.