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 8 Post Office locations in Jersey County, Illinois.

Residents of Jersey 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 Jersey County, Illinois Post Office

Dow Post Office

Address
Get Direction
Hours

Elsah Post Office

Address
Get Direction
Hours

Fieldon Post Office

View Details Call Now (618) 376-3771

Fieldon Post Office

Address
Get Direction
Hours

Jerseyville Post Office

View Details Call Now (618) 498-6713

Jerseyville Post Office

Address
Get Direction
Hours

Fidelity Post Office

View Details Call Now (618) 729-3793

Fidelity Post Office

Address
Get Direction
Hours

Grafton Post Office

View Details Call Now (618) 786-3309

Grafton Post Office

Address
Get Direction
Hours

Brighton Post Office

View Details Call Now (618) 372-3011

Brighton Post Office

Address
Get Direction
Hours

Medora Post Office

View Details Call Now (618) 729-3730

Medora Post Office

Address
Get Direction
Hours

Residents of Jersey 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 Jersey, Madison, Calhoun.