The Emmaus Public Library serves the municipalities of Emmaus, Macungie, and Upper Milford Township. It is governed by a policy statement formulated and adopted by a Board of Trustees who meet regularly at the library. Board meetings are open to the public.

The success of the Emmaus Public Library is due in large part to its large force of volunteers. They have been active in all facets of library operation since its humble beginnings. Volunteers are still very active today, assisting the fine professional staff in serving patrons and working behind the scenes. Private citizens from all the supporting municipalities (and some from other areas), area service clubs, local businesses, large corporations, youth organizations, and many others working together have all contributed to the tremendous growth and success of the Emmaus Public Library.