Post offices serve all communities within a county, from city branch locations to rural contract postal units that serve smaller towns and unincorporated areas with essential mail services. There are 7 Post Office locations in Union County, Ohio.

Residents of Union County should be aware that rural post offices and contract postal units may have limited hours compared to full-service branches. USPS provides a free package pickup service for all residents, including those in rural areas, which can eliminate the need to travel to a post office for outgoing packages.

List of Union County, Ohio Post Office

Marysville Post Office

View Details Call Now (937) 642-1961

Marysville Post Office

Address
Get Direction
Hours

Raymond Post Office

View Details Call Now (937) 246-2561

Raymond Post Office

Address
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Hours

Irwin Post Office

Address
Get Direction
Hours

Magnetic Springs Post Office

View Details Call Now (937) 348-2222

Magnetic Springs Post Office

Address
Get Direction
Hours

Milford Center Post Office

View Details Call Now (937) 349-2061

Milford Center Post Office

Address
Get Direction
Hours

Richwood Post Office

View Details Call Now (740) 943-2033

Richwood Post Office

Address
Get Direction
Hours

Unionville Center Post Office

View Details Call Now (614) 873-5153

Unionville Center Post Office

Address
Get Direction
Hours

Residents of Union County can use the USPS online location finder to identify the nearest post office, rural branch, or contract postal unit and check their individual hours. Enrolling in USPS Informed Delivery is free and lets all county residents preview incoming mail and packages via email or the USPS app each morning before delivery.

You may also find Post Office locations in neighboring counties including Clark, Union, Franklin.