Reptiles found in the park are, Thamnophis ordinoides (northwest garter snake), Thamnophis sirtalis (common garter snake), Thamnophis elegans (Puget Sound garter snake), Charina bottae (rubber boa), and Elgaria coerulea (northern alligator lizard). There is some question as to the presence of Eumeces skiltonianus (Western Skink) within the park.
Parkwide general herpetofaunal surveys were conducted in 1991 and 1992 and focused mostly on aquatic habitats. Open areas and forested habitats were surveyed but to a much lesser degree. Reptile species have also been reported in the parkwide amphibian inventories.
