Cities with the Cleanest Air in Massachusetts.

Cities in Massachusetts with the most good AQI days per year.

88 cities ranked · See the national list

#	City	Population	Good AQI Days	Median AQI	Unhealthy Days
1	Barnstable	49,568	341 days/yr	36	0 days/yr
2	South Yarmouth	11,552	341 days/yr	36	0 days/yr
3	Amherst	38,182	312 days/yr	36	0 days/yr
4	Northampton	30,962	312 days/yr	36	0 days/yr
5	Easthampton	16,086	312 days/yr	36	0 days/yr
6	Brockton	105,386	308 days/yr	37	0 days/yr
7	Quincy	102,114	308 days/yr	39	0 days/yr
8	Brookline	63,266	308 days/yr	39	0 days/yr
9	Weymouth	58,505	308 days/yr	39	0 days/yr
10	Braintree	38,899	308 days/yr	39	0 days/yr
11	Randolph	34,878	308 days/yr	39	0 days/yr
12	Franklin	33,154	308 days/yr	39	0 days/yr
13	Needham	32,459	308 days/yr	39	0 days/yr
14	Norwood	31,542	308 days/yr	39	0 days/yr
15	Wellesley	30,347	308 days/yr	39	0 days/yr
16	Milton	28,587	308 days/yr	39	0 days/yr
17	Bridgewater	28,471	308 days/yr	37	0 days/yr
18	Dedham	25,237	308 days/yr	39	0 days/yr
19	Abington	17,053	308 days/yr	37	0 days/yr
20	Holbrook	11,380	308 days/yr	39	0 days/yr
21	Hull	10,138	308 days/yr	37	0 days/yr
22	New Bedford	100,998	306 days/yr	38	0 days/yr
23	Fall River	94,082	306 days/yr	38	0 days/yr
24	Taunton	60,433	306 days/yr	38	0 days/yr
25	Attleboro	46,762	306 days/yr	38	0 days/yr
26	North Attleborough	30,984	306 days/yr	38	0 days/yr
27	Somerset	18,298	306 days/yr	38	0 days/yr
28	Cambridge	118,796	299 days/yr	38	0 days/yr
29	Lowell	118,368	299 days/yr	38	0 days/yr
30	Newton	89,044	299 days/yr	38	0 days/yr
31	Somerville	81,036	299 days/yr	38	0 days/yr
32	Framingham	72,399	299 days/yr	38	0 days/yr
33	Malden	65,906	299 days/yr	38	0 days/yr
34	Waltham	64,902	299 days/yr	38	0 days/yr
35	Medford	59,354	299 days/yr	38	0 days/yr
36	Everett	50,045	299 days/yr	38	0 days/yr
37	Arlington	46,350	299 days/yr	38	0 days/yr
38	Woburn	41,939	299 days/yr	38	0 days/yr
39	Marlborough	41,647	299 days/yr	38	0 days/yr
40	Watertown	35,543	299 days/yr	38	0 days/yr
41	Lexington	34,295	299 days/yr	38	0 days/yr
42	Melrose	29,650	299 days/yr	38	0 days/yr
43	Wakefield	27,793	299 days/yr	38	0 days/yr
44	Belmont	27,175	299 days/yr	38	0 days/yr
45	Burlington	26,274	299 days/yr	38	0 days/yr
46	Reading	25,612	299 days/yr	38	0 days/yr
47	Winchester	23,406	299 days/yr	38	0 days/yr
48	Stoneham	23,355	299 days/yr	38	0 days/yr
49	Wilmington	23,336	299 days/yr	38	0 days/yr
50	Hudson	15,719	299 days/yr	38	0 days/yr
51	Maynard	10,712	299 days/yr	38	0 days/yr
52	Worcester	207,055	298 days/yr	39	0 days/yr
53	Leominster	43,909	298 days/yr	39	0 days/yr
54	Fitchburg	41,798	298 days/yr	39	0 days/yr
55	Milford	27,731	298 days/yr	39	0 days/yr
56	Gardner	21,148	298 days/yr	39	0 days/yr
57	Southbridge	17,928	298 days/yr	39	0 days/yr
58	Webster	12,228	298 days/yr	39	0 days/yr
59	Lynn	101,709	296 days/yr	40	0 days/yr
60	Lawrence	88,736	296 days/yr	40	0 days/yr
61	Haverhill	67,698	296 days/yr	40	0 days/yr
62	Peabody	54,695	296 days/yr	40	0 days/yr
63	Methuen	53,475	296 days/yr	40	0 days/yr
64	Salem	44,795	296 days/yr	40	0 days/yr
65	Beverly	42,665	296 days/yr	40	0 days/yr
66	Gloucester	30,075	296 days/yr	40	0 days/yr
67	Saugus	28,773	296 days/yr	40	0 days/yr
68	Danvers	28,098	296 days/yr	40	0 days/yr
69	Marblehead	20,413	296 days/yr	40	0 days/yr
70	Newburyport	18,652	296 days/yr	40	0 days/yr
71	Amesbury	17,403	296 days/yr	40	0 days/yr
72	Swampscott	15,277	296 days/yr	40	0 days/yr
73	Lynnfield	13,064	296 days/yr	40	0 days/yr
74	Pittsfield	43,457	285 days/yr	38	0 days/yr
75	North Adams	12,606	285 days/yr	38	0 days/yr
76	Springfield	154,749	281 days/yr	39	0 days/yr
77	Chicopee	55,295	281 days/yr	39	0 days/yr
78	Westfield	40,378	281 days/yr	39	0 days/yr
79	Holyoke	37,813	281 days/yr	39	0 days/yr
80	West Springfield	28,772	281 days/yr	39	0 days/yr
81	Agawam	28,539	281 days/yr	39	0 days/yr
82	Longmeadow	15,696	281 days/yr	39	0 days/yr
83	Palmer	12,381	281 days/yr	39	0 days/yr
84	Greenfield	17,664	280 days/yr	38	0 days/yr
85	Boston	666,442	279 days/yr	37	0 days/yr
86	Revere	60,012	279 days/yr	37	0 days/yr
87	Chelsea	39,908	279 days/yr	37	0 days/yr
88	Winthrop	18,759	279 days/yr	37	0 days/yr