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 9 Post Office locations in Clay County, Missouri.

Residents of Clay 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 Clay County, Missouri Post Office

Gladstone Post Office

View Details Call Now (816) 436-3038

Gladstone Post Office

Address
Get Direction
Hours

Antioch Post Office

View Details Call Now (816) 453-5838

Antioch Post Office

Address
Get Direction
Hours

Holt Post Office

Address
Get Direction
Hours

Excelsior Springs Post Office

View Details Call Now (816) 630-3251

Excelsior Springs Post Office

Address
Get Direction
Hours

Kearney Post Office

View Details Call Now (816) 628-5717

Kearney Post Office

Address
Get Direction
Hours

Missouri City Post Office

View Details Call Now (816) 750-4452

Missouri City Post Office

Address
Get Direction
Hours

Liberty Post Office

View Details Call Now (816) 792-2872

Liberty Post Office

Address
Get Direction
Hours

North Kansas City Post Office

View Details Call Now (816) 221-6716

North Kansas City Post Office

Address
Get Direction
Hours

Smithville Post Office

View Details Call Now (816) 532-0975

Smithville Post Office

Address
Get Direction
Hours

Residents of Clay 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 Jackson, Clay, Platte.