Planet Fitness Share: Fitness Centers Planet Fitness Visit Website 242 Walnut Street Redwood City, CA 94063 (562) 335-0889 LinkedIn Facebook About Map About Get high-quality fitness at an affordable price. Planet Fitness offers low startup fees, no-commitment options as well as the PF Black Card® where you can get ALL. THE. PERKS all in the JFZ. What's Nearby? Distance: 5 10 15 20 25 50 mi.