 warren is a town in knox county, maine, united states. the population was 4,751 at the 2010 census. it includes the villages of east warren, warren and south warren, the latter home to the maine state prison and minimum security bolduc correctional facility. ==history== part of the waldo patent, it was called the upper town of st. georges plantation. it was first settled by scots-irish settlers from londonderry in 1736 under the auspices of brigadier-general samuel waldo, its proprietor.{{cite book | last = coolidge | first = a
Towns_in_Knox_County,_Maine Towns_in_Maine