Each district contains about one third of the state population. Together the three districts comprise the Maine Regional Library System, administered by the Maine State Library in Augusta. The Districts each serve the counties in their area. Interlibrary loan is perhaps one of the most important services of the entire regional library system, allowing the smallest libraries to access books and journals from other libraries around the country. District Councils consist of a representative from each member library or school system.
Councils meet at least twice each year.
District Offices are staffed by District Consultants who help individual libraries with building construction, long range planning, collection development, and other library management issues.