Station A-1 is located on State Highway 125 near the intersection of State Highway 28 in Andover. The barracks primary patrol area is Interstate 93 and later included Interstate 495; a coverage totaling over 222 square miles within 12 cities and towns.
SP Danvers covers over 169 square miles through 15 cities and towns through some of the most constricted and heavily traveled routes of 128/95 and route 1. Aside from being a sub-station, it also houses the Troop A Headquarters.
Station A-5, SP Revere, is located on Revere Beach Boulevard and covers over 27 square miles in 5 cities and towns, including the heavily traveled Route 1 from the Tobin Bridge to Copeland Circle in Revere.