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USPS Ada, Ohio 45810


Monday thru Friday: 8:30 a.m. – 4:30 p.m.
Saturday: 8:30 a.m. – Noon
Sunday: Closed

The Ada United States Post Office is located on corner of South Main and W. Lincoln Ave. across from McDonalds.

Students at Ohio Northern University cannot receive mail addressed to 402 W. College Ave. from the Ada USPS unless it is an Express Mail or an item that may require a signature from the recipient. All other items can only be received at the Mail Center at ONU.

Students that have an item at the Ada USPS that will require a signature will receive a notification form in their unit box stating that a signature is required. The Mail Center at ONU is not permitted to sign on behalf of the students.

Mail Center

Bill Kent

Fax: 419-772-3535
McIntosh Center
525 South Main Street
Ada, Ohio 45810
Monday: 8 a.m.-4:30 p.m.
Tuesday: 8 a.m.-4:30 p.m.
Wednesday: 8 a.m.-4:30 p.m.
Thursday: 8 a.m.-4:30 p.m.
Friday: 8 a.m.-4:30 p.m.
Saturday: Closed
Sunday: Closed