The number of Massachusetts cities and towns now at “high risk” for COVID-19 spread decreased to 222, according to the latest data from the Department of Public Health.
The latest map is based on data analyzed between Jan. 3 and Jan. 16.
If you have trouble seeing this map, please click here.
Last week, the number of cities and towns at high risk was 229.
Risk designations — which are colored, grey, green, yellow and red based on infection levels — are now determined using several new metrics for three population categories: communities with a population of less than 10,000; between 10,000 and 50,000; and greater than 50,000.
For communities with fewer than 10,000 residents, “grey” will be assigned if there are 10 total cases or fewer; “green” if there are up 15 cases; “yellow” if there are up to 25 cases; and “red” if there are more than 25 cases.
For communities with between 10,000 and 50,000 residents, “grey” will be assigned if there are 10 total cases or fewer; “green” if there are less than 10 average cases per 100,000 residents and more than 10 cases; “yellow” if there are 10 or more cases per 100,000 residents or a test positivity rate of 5% or more; and “red” if there are 10 or more cases per 100,000 residents and a test positivity rate of 5% or more.
And for communities with more than 50,000 residents, “grey” will be assigned if there are 15 total cases or fewer; “green” if there are less than 10 average cases per 100,000 residents and more than 15 cases; “yellow” if there are 10 or more cases per 100,000 residents or a test positivity rate of 4% or more; and “red” if there are 10 or more cases per 100,000 residents and a test positivity rate of 4% or more.
Here are the cities and towns now in the “red” by county:
Barnstable County: Barnstable, Bourne, Brewster, Chatham, Dennis, Falmouth, Harwich, Mashpee, Sandwich, Yarmouth
Berkshire County: Adams, Dalton, Great Barrington, Lee, Pittsfield
Bristol County: Acushnet, Attleboro, Berkley, Dartmouth, Dighton, Easton, Fairhaven, Fall River, Freetown, Mansfield, New Bedford, North Attleborough, Norton, Raynham, Rehoboth, Seekonk, Somerset, Swansea, Taunton, Westport
Dukes County: Edgartown, Oak Bluffs, Tisbury
Essex County: Amesbury, Andover, Beverly, Boxford, Danvers, Georgetown, Gloucester, Groveland, Hamilton, Haverhill, Ipswich, Lawrence, Lynn, Lynnfield, Manchester, Merrimac, Methuen, Middleton, Nahant, Newbury, North Andover, Peabody, Rockport, Rowley, Salem, Salisbury, Saugus, Swampscott, Topsfield, Wenham, West Newbury
Franklin County: Deerfield, Orange, Sunderland
Hampden County: Agawam, Brimfield, Chicopee, East Longmeadow, Hampden, Holyoke, Ludlow, Monson, Palmer, Southwick, Springfield, West Springfield, Westfield, Wilbraham
Hampshire County: Belchertown, Granby, Hadley, Hatfield, Southampton, Ware
Middlesex County: Ashby, Ashland, Ayer, Billerica, Boxborough, Burlington, Chelmsford, Dracut, Everett, Framingham, Holliston, Hudson, Littleton, Lowell, Malden, Marlborough, Maynard, Medford, North Reading, Pepperell, Reading, Shirley, Stoneham, Stow, Tewksbury, Townsend, Tyngsborough, Wakefield, Waltham, Westford, Wilmington, Woburn
Nantucket County: Nantucket
Norfolk County: Avon, Bellingham, Braintree, Canton, Cohasset, Dedham, Dover, Foxborough, Franklin, Holbrook, Medway, Millis, Norfolk, Norwood, Plainville, Quincy, Randolph, Stoughton, Walpole, Westwood, Weymouth, Wrentham
Plymouth County: Abington, Bridgewater, Brockton, Carver, Duxbury, East Bridgewater, Halifax, Hanover, Hanson, Hull, Kingston, Lakeville, Marion, Marshfield, Mattapoisett, Middleborough, Norwell, Pembroke, Plymouth, Plympton, Rochester, Rockland, Scituate, Wareham, West Bridgewater, Whitman
Suffolk County: Boston, Chelsea, Revere, Winthrop
Worcester County: Ashburnham, Athol, Auburn, Barre, Berlin, Blackstone, Boylston, Brookfield, Charlton, Clinton, Douglas, Dudley, East Brookfield, Fitchburg, Gardner, Grafton, Holden, Hopedale, Lancaster, Leicester, Leominster, Lunenburg, Milford, Millbury, North Brookfield, Oxford, Paxton, Rutland, Shrewsbury, Southborough, Southbridge, Spencer, Sterling, Sturbridge, Sutton, Templeton, Upton, Uxbridge, Warren, Webster, West Boylston, West Brookfield, Westminster, Winchendon, Worcester