2026 Rankings

Lowest Home Safety Scores in Massachusetts — 2026

Last updated: August 14, 2026

397 ZIP codes ranked by Safety Score #1: ZIP 01560 (South Grafton, MA) - 37/100
Lead Violations Lowest Score Safest Flood Risk Energy Cost Radon PFAS Reliability EJ Index Homebuyer Risk CO & Gas Safest Gas Remediation Burden Unresolved Violations (by Utility) Water Equity (by Utility)

Out of 397 ZIP codes with data in Massachusetts, these are the lowest-ranked areas for safety score. See also: National Lowest Home Safety Scores in America | All Massachusetts Rankings

Statistic Value
ZIP codes ranked 397
Lowest value 37/100
Median value 67/100
State Massachusetts

100 Lowest-Ranked ZIP Codes

Rank ZIP Code City State Safety Score Safety Score
1 01560 South Grafton MA 37/100 37/100
2 01746 Holliston MA 37/100 37/100
3 01519 Grafton MA 38/100 38/100
4 01581 Westborough MA 38/100 38/100
5 01463 Pepperell MA 40/100 40/100
6 01536 North Grafton MA 41/100 41/100
7 01545 Shrewsbury MA 41/100 41/100
8 01776 Sudbury MA 44/100 44/100
9 01876 Tewksbury MA 44/100 44/100
10 01940 Lynnfield MA 45/100 45/100
11 01949 Middleton MA 45/100 45/100
12 01824 Chelmsford MA 46/100 46/100
13 01826 Dracut MA 47/100 47/100
14 01862 North Billerica MA 47/100 47/100
15 01879 Tyngsboro MA 47/100 47/100
16 01983 Topsfield MA 47/100 47/100
17 01469 Townsend MA 48/100 48/100
18 01474 West Townsend MA 48/100 48/100
19 01501 Auburn MA 48/100 48/100
20 01564 Sterling MA 48/100 48/100
21 01570 Webster MA 49/100 49/100
22 01583 West Boylston MA 49/100 49/100
23 01607 Worcester MA 49/100 49/100
24 01754 Maynard MA 49/100 49/100
25 01773 Lincoln MA 49/100 49/100
26 01775 Stow MA 49/100 49/100
27 01778 Wayland MA 49/100 49/100
28 01821 Billerica MA 49/100 49/100
29 01850 Lowell MA 49/100 49/100
30 01851 Lowell MA 49/100 49/100
31 01852 Lowell MA 49/100 49/100
32 01854 Lowell MA 49/100 49/100
33 01860 Merrimac MA 49/100 49/100
34 01880 Wakefield MA 49/100 49/100
35 01950 Newburyport MA 49/100 49/100
36 01951 Newbury MA 49/100 49/100
37 01952 Salisbury MA 49/100 49/100
38 01969 Rowley MA 49/100 49/100
39 01985 West Newbury MA 49/100 49/100
40 01420 Fitchburg MA 50/100 50/100
41 01436 Baldwinville MA 50/100 50/100
42 01453 Leominster MA 50/100 50/100
43 01462 Lunenburg MA 50/100 50/100
44 01464 Shirley MA 50/100 50/100
45 01468 Templeton MA 50/100 50/100
46 01473 Westminster MA 50/100 50/100
47 01504 Blackstone MA 50/100 50/100
48 01520 Holden MA 50/100 50/100
49 01522 Jefferson MA 50/100 50/100
50 01523 Lancaster MA 50/100 50/100
51 01527 Millbury MA 50/100 50/100
52 01569 Uxbridge MA 50/100 50/100
53 01718 Village Of Nagog Woods MA 50/100 50/100
54 01720 Acton MA 50/100 50/100
55 01742 Concord MA 50/100 50/100
56 01747 Hopedale MA 50/100 50/100
57 01748 Hopkinton MA 50/100 50/100
58 01749 Hudson MA 50/100 50/100
59 01757 Milford MA 50/100 50/100
60 01760 Natick MA 50/100 50/100
61 01801 Woburn MA 50/100 50/100
62 01834 Groveland MA 50/100 50/100
63 01886 Westford MA 50/100 50/100
64 01901 Lynn MA 50/100 50/100
65 01902 Lynn MA 50/100 50/100
66 01904 Lynn MA 50/100 50/100
67 01905 Lynn MA 50/100 50/100
68 01923 Danvers MA 50/100 50/100
69 01938 Ipswich MA 50/100 50/100
70 01944 Manchester MA 50/100 50/100
71 01960 Peabody MA 50/100 50/100
72 01982 South Hamilton MA 50/100 50/100
73 01984 Wenham MA 50/100 50/100
74 02056 Norfolk MA 50/100 50/100
75 02138 Cambridge MA 50/100 50/100
76 02139 Cambridge MA 50/100 50/100
77 02140 Cambridge MA 50/100 50/100
78 02141 Cambridge MA 50/100 50/100
79 02142 Cambridge MA 50/100 50/100
80 02047 Humarock MA 57/100 57/100
81 02050 Marshfield MA 57/100 57/100
82 02066 Scituate MA 57/100 57/100
83 02330 Carver MA 58/100 58/100
84 02148 Malden MA 59/100 59/100
85 02324 Bridgewater MA 60/100 60/100
86 01005 Barre MA 61/100 61/100
87 01074 South Barre MA 61/100 61/100
88 02038 Franklin MA 61/100 61/100
89 01731 Hanscom Afb MA 63/100 63/100
90 02093 Wrentham MA 63/100 63/100
91 02145 Somerville MA 63/100 63/100
92 02155 Medford MA 63/100 63/100
93 01543 Rutland MA 64/100 64/100
94 01810 Andover MA 64/100 64/100
95 01845 North Andover MA 64/100 64/100
96 01863 North Chelmsford MA 64/100 64/100
97 01906 Saugus MA 64/100 64/100
98 02149 Everett MA 64/100 64/100
99 02176 Melrose MA 64/100 64/100
100 02420 Lexington MA 64/100 64/100

Methodology

Home Safety Score model 4.0.0 combines SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, county-level EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-08-14.

Frequently Asked Questions

What does a low Home Safety Score mean?

A score below 40 (grade F) means the four measured model components produced a low combined result. It does not claim that every property hazard was measured.

Can a ZIP code score change?

Yes. A later accepted release can change the score when any measured component changes. Every release identifies its score model and source periods.

Explore More Rankings

How this ranking is calculated, data sources, and limitations: Rankings Methodology →

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Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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