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US Post Office Hours and Locations

US Post Offices in O Fallon, MO

The United States Postal Service is an essential public service that is a vital part of our nation's infastructure.

The USPS was founded in 1775 and Benjamin Franklin was the first Postmaster General.

Below you'll find any US Post Offices that we've found in O Fallon, MO.
O Fallon Post Office

401 Church St
O Fallon, MO - 63366
636-272-3811

Nearby Listings

Due to the low number of listings in O Fallon, we have added area listings below.

Batchtown Post Office

23 Main St
Batchtown, IL - 62006
618-396-2577
Brussels Post Office

107 Main St
Brussels, IL - 62013
618-883-2575
Dow Post Office

24443 Pine St
Dow, IL - 62022
(618) 885-5231
This location does not process US Passport applications or renewals.  ..

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Elsah Post Office

48 Mill St
Elsah, IL - 62028
(618) 374-2491
This location does not process US Passport applications or renewals. ..

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Fieldon Post Office

110 E Main St
Fieldon, IL - 62031
(618) 376-3771
This location does not process US Passport applications or renewals. ..

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