The Borough of Florham Park is located in the South Eastern part of Morris County and is bordered on the South by Madison and Chatham Boroughs; on the North by Hanover and East Hanover Townships; on the West by Morris Township; and on the East by the Passaic River.

Once the site of two major estates, one now a private golf club and the other a suburban campus of Fairleigh Dickinson University, the 7.6 square mile Borough provides a large municipal recreation area, a private golf course and a public golf course; one municipal swim club; numerous businesses; professional office buildings; light industry and residential development.