Passport Application Services - Hawarden 900 Central Ave Hawarden, IA 51023 Phone : (712) 551-2305 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Post Office - Hawarden 900 Central Ave Hawarden, IA 51023 Phone : (712) 551-2305 Business Category Post Offices Toll-Free           (800) ASK-USPS