Naperville IL Post Office is a Postal facility that is able to witness your signature and seal your passport documents - standard processing is 4-8 weeks. Locate a Post Office or other USPS services such as stamps passport acceptance and Self-Service Kiosks. N Building Naperville Il By The Tollway In A Sea Of Otherwise Unimaginative Office Buildings This One Stands Out Naperville Commercial Real Estate Building 3075 Book Rd Ste 103. Naperville il post office . There might also be one in downtown Chicago that used to be 24-hours or is also open on Sundays but Ive never been to that location only this Naperville location. You are able to submit your US passport application at this Naperville Il Post Office for processing. 1750 W Ogden Ave. Use Find USPS Locations to compare Post Offices that provide passport services. This post office is the only post office in Illinois thats open on Sundays. Reviews 630 355-2500 Website. You are able to submit your United States pa...