Maine constitution
Article IV-1: house of representatives
Section 2

The House of Representatives shall consist of 151 members, to be elected by the qualified electors, and hold their office 2 years from the day next preceding the first Wednesday in December following the general election. The Legislature which convenes in 2013, and also the Legislature which convenes in 2021 and every 10th year thereafter, shall cause the State to be divided into districts for the choice of one Representative for each district. The number of Representatives shall be divided into the number of inhabitants of the State exclusive of foreigners not naturalized according to the latest Federal Decennial Census or a State Census previously ordered by the Legislature to coincide with the Federal Decennial Census, to determine a mean population figure for each Representative District. Each Representative District shall be formed of contiguous and compact territory and shall cross political subdivision lines the least number of times necessary to establish as nearly as practicable equally populated districts. Whenever the population of a municipality entitles it to more than one district, all whole districts shall be drawn within municipal boundaries. Any population remainder within the municipality shall be included in a district with contiguous territory and shall be kept intact.