Winnebago County, IL

County

15,649 species observed across 8 groups · Pop. 284.9K

Ecoregions

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Species observed

Birds· 511 species

Mammals· 115 species

Plants· 4,612 species

Reptiles & Amphibians· 129 species

Fish· 197 species

Insects· 8,984 species

Other Invertebrates· 1,051 species

Fungi & Lichens

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Part of

StateIllinoisPop. 12.8M

Cities in Winnebago County

Machesney Park, ILPop. 22.9KRoscoe, ILPop. 11.0K