what county is harbor island
Harbor Island - Physical Feature (Island) in Orange County. Harbor Island is a physical feature (island) in Orange County. The primary coordinates for Harbor Island places it within the CA 92661 ZIP Code delivery area. In the Maps and Aerial Photos section below, you'll find links to: (1) Local area photos around Harbor Island, (2) A listing of the nearest hotels to Harbor Island and (3) Driving Directions to Harbor Island from almost anywhere. The location of Harbor Island is marked on an interactive map.