The select board shall divide the town into eight convenient voting precincts so established as to consist of as nearly an equal number of inhabitants as possible, in compact and contiguous territory, bounded insofar as possible by the center line of known streets or ways or by other well defined limits.
The boundaries of the precincts shall be reviewed and wholly or partly revised by the select board (a) at least once in every ten years, (b) whenever it is directed to do so by vote of the town meeting, and (c) whenever it is apparent from the street list, census data or other official information that the number of inhabitants in any one precinct varies by five percent or more from the total number of inhabitants of the town divided by eight, the number of precincts.
The select board shall, within twenty days after any revision of precincts, but not later than January twentieth of the succeeding year, file a report of its doings with the town clerk and the assessors with a map or maps or description of the precincts and the names and addresses of the voters therein. The board shall cause to be posted in at least one public place in each precinct a map or description of that precinct with the names and addresses of the voters therein. Whenever the precincts are revised, the town clerk shall forthwith give written notice thereof to the state secretary, stating the number and designation of such precincts.