St. Louis County, MO
County13,038 species observed across 8 groups · Pop. 1.0M
Ecoregions
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Species observed
Birds· 424 species
Mammals· 99 species
Plants· 4,068 species
Reptiles & Amphibians· 154 species
Fish· 245 species
Insects· 7,151 species
Other Invertebrates· 847 species
Fungi & Lichens
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Part of
StateMissouriPop. 6.2MCities in St. Louis County
Ballwin, MOPop. 31.1KBellefontaine Neighbors, MOPop. 10.7KBridgeton, MOPop. 11.4KChesterfield, MOPop. 50.0KClayton, MOPop. 17.3KCrestwood, MOPop. 12.4KCreve Coeur, MOPop. 18.8KFerguson, MOPop. 18.5KFlorissant, MOPop. 52.4KHazelwood, MOPop. 25.4KJennings, MOPop. 12.9KKirkwood, MOPop. 29.5KManchester, MOPop. 18.3KMaryland Heights, MOPop. 28.3KOverland, MOPop. 15.9KSt. Ann, MOPop. 13.0KTown and Country, MOPop. 11.6KUniversity City, MOPop. 35.0KWebster Groves, MOPop. 24.0KWildwood, MOPop. 35.4K