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Cleanest Air Cities in Massachusetts

Lowest pollution levels for healthy outdoor living.

Best Climate Cleanest Air Sunniest Most Urban All Rankings →
All United States  ·  Massachusetts

How We Score

Each metric is normalized 0-100 across U.S. cities, then weighted and summed. Cities missing any metric are excluded.

Clean Air · 65% Sunshine · 20% Low Rain · 15%

Top 12 Cleanest Air Cities in Massachusetts

Ranked by composite score across 3 weighted metrics.

#1
Score 31.1
Nantucket, MA
10,837 residents
Clean Air 37
Sunshine 275 days
Low Rain 41
#2
Score 30.1
Oak Bluffs, MA
1,357 residents
Clean Air 37
Sunshine 275 days
Low Rain 42
#3
Score 30.1
Vineyard Haven, MA
2,672 residents
Clean Air 37
Sunshine 275 days
Low Rain 42
#4
Score 28
West Yarmouth, MA
6,323 residents
Clean Air 37
Sunshine 275 days
Low Rain 45
#5
Score 28
Yarmouth Port, MA
5,825 residents
Clean Air 37
Sunshine 275 days
Low Rain 45
#6
Score 28
Dennis, MA
1,903 residents
Clean Air 37
Sunshine 275 days
Low Rain 45
#7
Score 28
South Yarmouth, MA
11,642 residents
Clean Air 37
Sunshine 275 days
Low Rain 45
#8
Score 27.6
West Chatham, MA
1,337 residents
Clean Air 37
Sunshine 275 days
Low Rain 45
#9
Score 27.2
Barnstable Town, MA
49,232 residents
Clean Air 37
Sunshine 275 days
Low Rain 46
#10
Score 27
Chatham, MA
1,614 residents
Clean Air 37
Sunshine 275 days
Low Rain 46
#11
Score 27
Acushnet Center, MA
2,792 residents
Clean Air 37
Sunshine 275 days
Low Rain 46
#12
Score 27
Smith Mills, MA
4,467 residents
Clean Air 37
Sunshine 275 days
Low Rain 46

Full Ranking, Massachusetts

Top 50 cities. Click any city to see its full profile.

1 Nantucket MA 31.1
2 Oak Bluffs MA 30.1
3 Vineyard Haven MA 30.1
4 West Yarmouth MA 28
5 Yarmouth Port MA 28
6 Dennis MA 28
7 South Yarmouth MA 28
8 West Chatham MA 27.6
9 Barnstable Town MA 27.2
10 Chatham MA 27
11 Acushnet Center MA 27
12 Smith Mills MA 27
13 Brewster MA 26.7
14 Orleans MA 26.7
15 North Eastham MA 26.7
16 Northwest Harwich MA 26.7
17 Dennis Port MA 26.7
18 South Dennis MA 26.7
19 East Dennis MA 26.7
20 East Harwich MA 26.7
21 Harwich Port MA 26.7
22 West Dennis MA 26.7
23 Harwich Center MA 26.7
24 The Pinehills MA 25.4
25 Taunton MA 24.8
26 Raynham Center MA 24.8
27 Ocean Grove MA 24.3
28 North Westport MA 24.3
29 Somerset MA 24.3
30 Bridgewater Town MA 20.8
31 Monument Beach MA 20.6
32 Sagamore MA 20.6
33 Marion Center MA 20.6
34 White Island Shores MA 20.6
35 Forestdale MA 20.6
36 West Wareham MA 20.6
37 Onset MA 20.6
38 Weweantic MA 20.6
39 Pocasset MA 20.6
40 Buzzards Bay MA 20.6
41 Wareham Center MA 20.6
42 Bourne MA 20.6
43 North Attleborough Town MA 20
44 North Seekonk MA 20
45 Bliss Corner MA 19.8
46 Mattapoisett Center MA 19.8
47 Attleboro MA 19.7
48 Norton Center MA 19.7
49 Middleborough Center MA 19.6
50 North Lakeville MA 19.6

Nantucket, MA tops the list with a composite score of 31.1 out of 100, followed by Oak Bluffs and Vineyard Haven. MA dominates the top 12 with 12 cities, reflecting strong performance across the weighted metrics for cleanest air.

Rankings combine 3 independent metrics: Clean Air, Sunshine, Low Rain. Cities are weighted to reflect what matters most to cleanest air, and any city missing one or more metrics is excluded to avoid artificially inflated rankings.

Explore Other Best Cities Rankings

Best Climate Cities
Warm temperatures, plenty of sunshine and clean air.
Sunniest Cities
Most days of sunshine per year, with warm and dry climate.
Most Urban Cities
Densely populated city centers with the largest urban footprints.