The Mid-Michigan Library League (MMLL) serves 36 public libraries in 15 counties of Michigan's lower peninsula. The member libraries are divided into nine groups, each with a representative on the Board of Trustees. MMLL is one of Michigan's eleven library cooperatives, formed by PA 89 of 1977. The Plan of Service is updated annually, based on the needs of the membership.
Please see this 2024 Benefits of Membership flyer for a summary of member benefits