Zip Code Listings for Warren, Ohio The following are the areas codes and zip codes for Warren, Ohio 44481 (area code: 330)
44482 (area code: 330)
44483 (area code: 330)
44484 (area code: 330)
44485 (area code: 330)
44486 (area code: 330)
44488 (area code: 330)