Mercer County, OH

County

20,356 species observed across 8 groups · Pop. 42.5K

Ecoregions

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Species observed

Birds· 513 species

Mammals· 105 species

Plants· 4,831 species

Reptiles & Amphibians· 151 species

Fish· 231 species

Insects· 9,287 species

Other Invertebrates· 1,179 species

Fungi & Lichens· 4,059 species

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Part of

StateOhioPop. 11.8M

Cities in Mercer County

Celina, OHPop. 10.9K