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Jeff Lammers (Postmaster)
jeffrey.b.lammers@usps.gov
110 E Liberty St
Martinsburg, OH 43037
Martinsburg, OH 43037
The Martinsburg Post Office is located in the state of Ohio within Knox County. This location serves 535 Martinsburg residents with a median income of $43,250. It's estimated that approximately 854 packages pass through this post office each year.