what county is florham park, nj
Homefacts City Report. Florham Park is located in Morris County, NJ. The population is 11,693, making Florham Park the 4th largest city in Morris County. There are 3 public schools in Florham Park with an average Homefacts rating of A-. The total crime rate for Florham Park is very low, and there are 1 registered sex offenders residing in the city.