Ione, CA

ZIP code 95640 belongs to the town of Ione, California. This area is known for being home to the historic Preston Castle, a former reform school that is now a popular tourist attraction. Other notable landmarks in ZIP code 95640 include the Howard Park and Clark's Corner, a local favorite for shopping and dining. With its charming small-town atmosphere and rich history, Ione is a delightful destination for visitors and residents alike.