Maine Senate 17 serves towns in Androscoggin County — Greene, Leeds, Lisbon, Livermore, Livermore Falls, Sabattus, Turner and Wales; and in Kennebec County — Fayette and Litchfield.

Maine Senate 14 covers towns In Kennebec County, including Chelsea, Farmingdale, Gardiner, Hallowell, Manchester, Monmouth, Pittston, Randolph, Readfield, Wayne, West Gardiner and Winthrop.

Maine Senate 5 parts of Franklin County, including Carrabassett Valley, Chesterville, East Central Franklin, Farmington, Industry, Kingfield, New Sharon, New Vineyard, Strong, Wilton and Wyman Township; in Kennebec County, Rome and Vienna; and in Somerset County, Anson, Athens, Bingham, Brighton Plantation, Cambridge, Caratunk, Central Somerset, Cornville, Dennistown Plantation, Embden; Harmony, Hartland, Highland Plantation, Jackman, Mercer, Moose River, Moscow, New Portland, Northeast Somerset, Northwest Somerset, Pleasant Ridge Plantation, Ripley, Seboomook Lake, Smithfield, Solon, St. Albans, Starks, The Forks Plantation and West Forks Plantation.

Maine Senate 5 parts of Franklin County, including Carrabassett Valley, Chesterville, East Central Franklin, Farmington, Industry, Kingfield, New Sharon, New Vineyard, Strong, Wilton and Wyman Township; in Kennebec County, Rome and Vienna; and in Somerset County, Anson, Athens, Bingham, Brighton Plantation, Cambridge, Caratunk, Central Somerset, Cornville, Dennistown Plantation, Embden; Harmony, Hartland, Highland Plantation, Jackman, Mercer, Moose River, Moscow, New Portland, Northeast Somerset, Northwest Somerset, Pleasant Ridge Plantation, Ripley, Seboomook Lake, Smithfield, Solon, St. Albans, Starks, The Forks Plantation and West Forks Plantation.