Hilo, HI

ZIP code 96721 belongs to Hilo, Hawaii, located on the eastern coast of the Big Island. This area is known for its stunning Waipio Valley, a lush and dramatic gorge with black sand beaches. Other notable landmarks in 96721 include the historic Imiloa Astronomy Center and the beautiful Wailuku River State Park, which features the dramatic Rainbow Falls. Visitors can also enjoy downtown Hilo's charming shops and restaurants.