Mainstreetusc.com is the official community website for Upper St. Clair, Pennsylvania, a resource for athletics, arts, churches and synagogues, clubs, community resources, education, history, news, recreation, science and technology .
Keywords: upper st. clair, Community Foundation, MainStreetUSC eNews, USC, Upper St. Clair, Main Street, Newcomers, Welcome Wagon, Clubs, Recreation, Arts, USC Police, Churches, Hospitals, Child Care, Retirement Centers, Swimming Pools, Athletics
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