St. Louis County Post Office

Find St. Louis County Missouri post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Ballwin Post Office 15455 Manchester Road Ballwin MO 63011 636-227-5783


Bridgeton Post Office 12255 Natural Bridge Road Bridgeton MO 63044 314-209-1693

Carr Post Office 1650 Shackelford Road Florissant MO 63031 314-921-7542

Chesterfield Post Office 16105 Swingley Ridge Road Chesterfield MO 63017 636-532-5999

Eureka Post Office 101 Thresher Drive Eureka MO 63025 636-938-1352

Fenton Post Office 10 Fenton Plaza Fenton MO 63026 636-349-6693

Florissant Post Office 2200 North Highway 67 Florissant MO 63033 314-830-6101

Galleria Postal Store Post Office 1133 Saint Louis Galleria Street Richmond Heights MO 63117 314-726-0675

Glencoe Post Office 18072 Manchester Road Wildwood MO 63038 636-458-8840

Grover Post Office 16982 Manchester Road Wildwood MO 63040 636-458-3002

Hazelwood Post Office 6135 North Lindbergh Boulevard Hazelwood MO 63042 314-731-1536

Kirkwood Postal Store Post Office 343 South Kirkwood Road Kirkwood MO 63122 314-966-0638

Manchester Meadows Post Office 13947 Manchester Road Ballwin MO 63021 636-207-0384

Manchester Post Office 14373 Manchester Road Ballwin MO 63011 636-207-1013

Maryland Heights Post Office 177 Weldon Parkway Maryland Heights MO 63043 314-567-7767

Saint Albans Post Office 3451 Saint Albans Road Chesterfield MO 63005 636-273-5306

Saint Ann Post Office 10401 International Plaza Drive St. Ann MO 63074 314-428-5380

Town And Country Post Office 1100 Town and Country Crossing Drive Chesterfield MO 63017 636-391-4970

Valley Park Post Office 305 Saint Louis Avenue Valley Park MO 63088 636-861-4568

What Change of Address options are available?

Customers can request a temporary or permanent Change of Address either online or in person at the Post Office using PS Form 3575. The online application for Change of Address has a $1.00 identity validation fee.

Is it possible to insure mail and items sent via the USPS?

Yes. Standard mail can be insured for up to $5,000 for an additional fee. Registered mail items can be insured for up to $50,000.

What is the USPS Office of Inspector General?

The Office of Inspector General (OIG) is a division within the USPS responsible for ensuring the integrity and accountability of the postal service. It conducts investigations to safeguard the postal system and performs audits and reviews.