Home › Top 4 Fitness and Gym in South Plainfield, New Jersey Find best Fitness and Gym in South Plainfield, New Jersey, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. LA Fitness - South Plainfield (NJ 07080) US, South Plainfield, NJ 07080907 Oak Tree Ave Suite D1 CrossFit Stealth 2 US, South Plainfield, NJ 0708025 Davis St Esporta Fitness - South Plainfield (NJ 07080) US, South Plainfield, NJ 07080200 New World Way Planet Fitness - South Plainfield (NJ 07080) US, South Plainfield, NJ 070806761 Hadley Rd