[3] The primary home field is located at Vernon Hills Athletic Complex.

FC United co-invested in 2019 with the Vernon Hills Park District to install synthetic turf on three soccer fields.

[8] In 2021, the U-19 Boys Pre-Academy Red team won the USYS National Championship.

[9] In 2017, FC United added a semi-professional team in the PDL, now the USL League Two, replacing the departing Chicago Fire Premier, after the Fire decided to relinquish their ties to the PDL.

FC United was previously owned by SMP Holdings (Sports Made Personal), led by founder and CEO Chad Gruen.