Imlay City – Full Member

Independence Charter Township – Associate

Indianfields Township – Associate

Inkster – Full Member

Inkster Leanna Hicks Public Library – Associate

Interlochen Public Library – Associate

Ionia – Full Member

Ionia Community Library – Associate

Ionia County – Associate

Ionia Regional Utilities Authority – Associate

Iron Mountain – Full Member

Iron River – Full Member

Iron River Housing Commisson – Associate

Ironwood – Full Member

Isabella Township – Associate

Ishpeming – Full Member

Ithaca – Full Member