Donald P Benuska (Postmaster)
donald.p.benuska@usps.gov
115 N Gage St
Somonauk, IL 60552
Somonauk, IL 60552
The Somonauk Post Office is located in the state of Illinois within Dekalb County. This location serves 4,448 Somonauk residents with a median income of $72,882. It's estimated that approximately 7,100 packages pass through this post office each year.