Castleford, ID

ZIP code 83321 covers the town of Bellevue, Idaho, nestled along the Big Wood River in the Wood River Valley. The area is known for its picturesque views of the surrounding mountains, including the iconic Pioneer Mountains to the west. Bellevue is home to the historic Howard Preserve, which offers scenic hiking and birdwatching opportunities, as well as the quaint downtown area with shops and restaurants.