St. Clair County, IL

County

13,231 species observed across 8 groups · Pop. 256.8K

Ecoregions

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Species observed

Birds· 425 species

Mammals· 101 species

Plants· 4,119 species

Reptiles & Amphibians· 162 species

Fish· 257 species

Insects· 7,201 species

Other Invertebrates· 916 species

Fungi & Lichens

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Part of

StateIllinoisPop. 12.8M

Cities in St. Clair County

Belleville, ILPop. 42.3KCahokia Heights, ILPop. 17.8KEast St. Louis, ILPop. 18.4KFairview Heights, ILPop. 16.7KO'Fallon, ILPop. 32.3KShiloh, ILPop. 14.1KSwansea, ILPop. 14.4K