![]() Photo from Wikipedia | Saint Clair, MO 63077 Post Office Location: 1020 Plaza Court South, Suite A; Saint Clair, MO Year Post Office built: Town(s) Served: Saint Clair Acceptable City Names: Saint Clair Not Acceptable City Names: Parkway Sectional Service Facility: St. Louis (Vicinity) County(ies): Franklin Info on Saint Clair: The City of Saint Clair is located in Northeastern Franklin County. It is home to aprox. 4,491 residents (2020 census). |
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