Madison County, IL

County

15,353 species observed across 8 groups · Pop. 265.6K

Ecoregions

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Species observed

Birds· 424 species

Mammals· 102 species

Plants· 4,120 species

Reptiles & Amphibians· 162 species

Fish· 245 species

Insects· 7,316 species

Other Invertebrates· 917 species

Fungi & Lichens· 2,067 species

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Part of

StateIllinoisPop. 12.8M

Cities in Madison County

Alton, ILPop. 25.6KCollinsville, ILPop. 24.3KEdwardsville, ILPop. 26.8KGlen Carbon, ILPop. 13.9KGodfrey, ILPop. 17.8KGranite City, ILPop. 27.5KHighland, ILPop. 10.0KTroy, ILPop. 10.9KWood River, ILPop. 10.4K