fellow member,
member an organization that is a member of another organization (especially a state that belongs to a group of nations); "the library was a member of the interlibrary loan association"; "Canada is a member of the United Nations"
council a meeting of people for consultation; "emergency council"
A councillor or councilor (Cllr, Coun, Clr or Cr for short) is a member of a local government council, such as a city council. Often in the United States, the title is councilman or councilwoman.