Mission Park Apartments Gilroy Ca . Skip to main content toggle navigation. Mission park invites you to discover our distinctive gilroy, ca apartments. Mission Park Gilroy, CA Apartment Finder from apartmentfinder.com Mission park is located at 766 1st st, gilroy, ca 95020. This building is located in gilroy in. Mission park is conveniently located near 101, 152 and caltrain and just minutes from shops, restaurants, markets and numerous golf courses.