Missouri's 4th Senatorial District is one of 34 districts in the Missouri Senate. The district has been represented by Democrat Karla May since 2019.
The district is based in western St. Louis city and a portion of eastern St. Louis County. Other major municipalities in the district include Clayton, Maplewood, Richmond Heights, and Shrewsbury. The district is also home to Forest Park, the Missouri Botanical Garden, the Saint Louis Zoo, and Washington University in St. Louis.
Democratic Primary
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