USDA hardiness zones for Maine Cities, Towns and Counties

Maine have 8 USDA planting zones, ranging from 3b to 7a.

Easily find your USDA Hardiness zone in Maine by using the list of Maine Cities, Towns, and Counties planting zones given below. You can also use the Planting Zones by Zipcode search tool and the Maine interactive map given below.

Maine Planting Zones by ZipCode

Planting Zones Maine Map

USDA hardiness zones for Maine Counties

Maine Counties	Hardiness Zones
Androscoggin County	Zone 5a and 5b
Aroostook County	Zone 3b, 4a, 4b and 5a
Cumberland County	Zone 5a, 5b, 6a and 6b
Franklin County	Zone 4a, 4b, 5a and 5b
Hancock County	Zone 5a, 5b, 6a and 6b
Kennebec County	Zone 5a and 5b
Knox County	Zone 5b, 6a, 6b and 7a
Lincoln County	Zone 5b, 6a, 6b and 7a
Oxford County	Zone 4a, 4b, 5a and 5b
Penobscot County	Zone 4a, 4b, 5a and 5b
Piscataquis County	Zone 3a, 3b, 4a, 4b and 5a
Sagadahoc County	Zone 5b, 6a and 6b
Somerset County	Zone 3b, 4a, 4b, 5a and 5b
Waldo County	Zone 5a, 5b and 6a
Washington County	Zone 4b, 5a, 5b, 6a and 6b

USDA hardiness zones for Maine cities and towns

Maine Cities/Towns	Hardiness Zones
Alfred	Zone 5b
Anson	Zone 5a
Ashland	Zone 4a
Auburn	Zone 5b
Augusta	Zone 5b
Bangor	Zone 5a
Bar Harbor	Zone 6a
Bath	Zone 5b and 6a
Belfast	Zone 5a and 5b
Berwick	Zone 6a
Biddeford	Zone 5b and 6a
Bingham	Zone 5a
Blaine	Zone 4a
Blue Hill	Zone 5b
Boothbay Harbor	Zone 6a
Bowdoinham	Zone 5b
Brewer	Zone 5a
Bridgton	Zone 5a and 5b
Brunswick	Zone 5b and 6a
Bucksport	Zone 5a and 5b
Calais	Zone 5a and 5b
Cape Neddick	Zone 6a
Caribou	Zone 4a and 4b
Casco	Zone 5b
Castine	Zone 5b
Chisholm	Zone 5a
Clinton	Zone 5a and 5b
Cousins Island	Zone 6a
Cumberland Center	Zone 5b and 6a
Damariscotta	Zone 5b and 6a
Dexter	Zone 4b and 5a
Dixfield	Zone 5a and 5b
Dover-Foxcroft	Zone 4b and 5a
Eagle Lake	Zone 4a
East Millinocket	Zone 5a
Eastport	Zone 6a
Ellsworth	Zone 5a and 5b
Fairfield	Zone 5a and 5b
Falmouth	Zone 6a
Falmouth Foreside	Zone 6a
Farmingdale	Zone 5b
Farmington	Zone 5a
Fort Fairfield	Zone 4a
Freeport	Zone 6a
Fryeburg	Zone 5a
Gardiner	Zone 5b
Gorham	Zone 5b
Gray	Zone 5b
Greenville	Zone 4b and 5a
Guilford	Zone 5a
Hallowell	Zone 5b
Hampden	Zone 5a
Hartland	Zone 4b and 5a
Houlton	Zone 4b
Howland	Zone 5a
Kennebunk	Zone 5b and 6a
Kennebunkport	Zone 6a
Kittery	Zone 6a
Kittery Point	Zone 6a
Lake Arrowhead	Zone 5a and 5b
Lewiston	Zone 5b
Limestone	Zone 4a
Lisbon Falls	Zone 5b
Little Falls	Zone 5b
Littlejohn Island	Zone 6a
Livermore Falls	Zone 5a
Lubec	Zone 6a
Machias	Zone 5b
Madawaska	Zone 4a and 4b
Madison	Zone 5a
Mapleton	Zone 4a
Mars Hill	Zone 4a
Mechanic Falls	Zone 5b
Mexico	Zone 5a and 5b
Milford	Zone 5a
Millinocket	Zone 5a
Milo	Zone 5a
Naples	Zone 5a and 5b
Newcastle	Zone 5b and 6a
Newport	Zone 4b and 5a
Norridgewock	Zone 5a
North Berwick	Zone 5b and 6a
North Windham	Zone 5b
Norway	Zone 5a and 5b
Old Orchard Beach	Zone 6a and 6b
Old Town	Zone 5a and 5b
Orono	Zone 5a and 5b
Oxford	Zone 5a and 5b
Pittsfield	Zone 5a
Portland	Zone 5b, 6a and 6b
Presque Isle	Zone 4a and 4b
Randolph	Zone 5b
Richmond	Zone 5b
Rockland	Zone 5b and 6a
Rumford	Zone 5a and 5b
Saco	Zone 5b, 6a and 6b
Sanford	Zone 5b
Searsport	Zone 5b
Skowhegan	Zone 5a
South Eliot	Zone 6a
South Paris	Zone 5a and 5b
South Windham	Zone 5b
Southwest Harbor	Zone 6a
Standish	Zone 5a and 5b
Steep Falls	Zone 5a and 5b
Thomaston	Zone 6a
Topsham	Zone 5b
Unity	Zone 5a
Van Buren	Zone 3b and 4a
Waldoboro	Zone 5b and 6a
Washburn	Zone 4a
Waterville	Zone 5b
West Kennebunk	Zone 5b
Westbrook	Zone 5b and 6a
Wilton	Zone 5a
Winslow	Zone 5b
Winter Harbor	Zone 6a
Winterport	Zone 5a and 5b
Winthrop	Zone 5b
Wiscasset	Zone 5b
Woodland	Zone 5a and 5b
Woolwich	Zone 5b and 6a
Yarmouth	Zone 6a
York Harbor	Zone 6a