The club was formed in 1999 and joined the National Soccer League in the 1999–2000 season.
Parramatta Power's first National Soccer League match was against Marconi-Fairfield and they met their 17th and last different opponent, Adelaide United, for the first time in the 2003–04 National Soccer League season.
The team that Parramatta Power played the most in league competition was Perth Glory, who they first met in the 1999—2000 National Soccer League season; the 8 defeats from 15 meetings was more than they have lost against any other club.
Adelaide City drew 5 league encounters with Parramatta Power, more than any other club.
Parramatta Power had recorded more league victories against Sydney United than against any other club, having beaten them 9 times out of 12 attempts.