2026 Rankings

Lowest Home Safety Scores in New Hampshire — 2026

Last updated: June 4, 2026

282 ZIP codes ranked by Safety Score #1: ZIP 03849 (Madison, NH) — 12/100
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 282 ZIP codes with data in New Hampshire, these are the lowest-ranked areas for safety score. See also: National Lowest Home Safety Scores in America | All New Hampshire Rankings

Statistic Value
ZIP codes ranked 282
Lowest value 12/100
Median value 69/100
State New Hampshire

100 Lowest-Ranked ZIP Codes

Rank ZIP Code City State Safety Score Safety Score
1 03849 Madison NH 12/100 12/100
2 03838 Glen NH 15/100 15/100
3 03816 Center Tuftonboro NH 31/100 31/100
4 03256 New Hampton NH 33/100 33/100
5 03814 Center Ossipee NH 34/100 34/100
6 03864 Ossipee NH 38/100 38/100
7 03227 Center Sandwich NH 40/100 40/100
8 03259 North Sandwich NH 40/100 40/100
9 03307 Loudon NH 40/100 40/100
10 03832 Eaton Center NH 40/100 40/100
11 03847 Kearsarge NH 40/100 40/100
12 03850 Melvin Village NH 40/100 40/100
13 03852 Milton Mills NH 40/100 40/100
14 03853 Mirror Lake NH 40/100 40/100
15 03869 Rollinsford NH 40/100 40/100
16 03875 Silver Lake NH 40/100 40/100
17 03896 Wolfeboro Falls NH 40/100 40/100
18 03897 Wonalancet NH 40/100 40/100
19 03254 Moultonborough NH 41/100 41/100
20 03886 Tamworth NH 43/100 43/100
21 03813 Center Conway NH 45/100 45/100
22 03840 Greenland NH 45/100 45/100
23 03890 West Ossipee NH 45/100 45/100
24 03823 Madbury NH 46/100 46/100
25 03245 Holderness NH 47/100 47/100
26 03238 Glencliff NH 49/100 49/100
27 03266 Rumney NH 49/100 49/100
28 03042 Epping NH 50/100 50/100
29 03057 Mont Vernon NH 50/100 50/100
30 03305 Concord NH 50/100 50/100
31 03862 North Hampton NH 50/100 50/100
32 03871 Rye Beach NH 50/100 50/100
33 03872 Sanbornville NH 50/100 50/100
34 03216 Andover NH 51/100 51/100
35 03882 Effingham NH 51/100 51/100
36 03223 Campton NH 52/100 52/100
37 03574 Bethlehem NH 52/100 52/100
38 03741 Canaan NH 52/100 52/100
39 03041 East Derry NH 53/100 53/100
40 03047 Greenfield NH 53/100 53/100
41 03082 Lyndeborough NH 53/100 53/100
42 03084 Temple NH 53/100 53/100
43 03220 Belmont NH 53/100 53/100
44 03221 Bradford NH 53/100 53/100
45 03231 East Andover NH 53/100 53/100
46 03233 Elkins NH 53/100 53/100
47 03240 Grafton NH 53/100 53/100
48 03260 North Sutton NH 53/100 53/100
49 03272 South Newbury NH 53/100 53/100
50 03284 Springfield NH 53/100 53/100
51 03285 Thornton NH 53/100 53/100
52 03291 West Nottingham NH 53/100 53/100
53 03301 Concord NH 53/100 53/100
54 03303 Concord NH 53/100 53/100
55 03445 Sullivan NH 53/100 53/100
56 03450 Harrisville NH 53/100 53/100
57 03457 Nelson NH 53/100 53/100
58 03468 West Peterborough NH 53/100 53/100
59 03583 Jefferson NH 53/100 53/100
60 03589 Mount Washington NH 53/100 53/100
61 03593 Randolph NH 53/100 53/100
62 03601 Acworth NH 53/100 53/100
63 03604 Drewsville NH 53/100 53/100
64 03605 Lempster NH 53/100 53/100
65 03607 South Acworth NH 53/100 53/100
66 03609 North Walpole NH 53/100 53/100
67 03746 Cornish Flat NH 53/100 53/100
68 03749 Enfield Center NH 53/100 53/100
69 03750 Etna NH 53/100 53/100
70 03751 Georges Mills NH 53/100 53/100
71 03754 Guild NH 53/100 53/100
72 03769 Lyme Center NH 53/100 53/100
73 03779 Piermont NH 53/100 53/100
74 03815 Center Strafford NH 53/100 53/100
75 03817 Chocorua NH 53/100 53/100
76 03830 East Wakefield NH 53/100 53/100
77 03837 Gilmanton Iron Works NH 53/100 53/100
78 03883 South Tamworth NH 53/100 53/100
79 03242 Henniker NH 54/100 54/100
80 03773 Newport NH 54/100 54/100
81 03048 Greenville NH 55/100 55/100
82 03582 Groveton NH 55/100 55/100
83 03590 North Stratford NH 55/100 55/100
84 03809 Alton NH 55/100 55/100
85 03885 Stratham NH 55/100 55/100
86 03580 Franconia NH 56/100 56/100
87 03848 Kingston NH 56/100 56/100
88 03255 Newbury NH 57/100 57/100
89 03281 Weare NH 57/100 57/100
90 03258 Chichester NH 58/100 58/100
91 03302 Concord NH 58/100 58/100
92 03447 Fitzwilliam NH 58/100 58/100
93 03461 Rindge NH 58/100 58/100
94 03467 Westmoreland NH 58/100 58/100
95 03603 Charlestown NH 58/100 58/100
96 03768 Lyme NH 58/100 58/100
97 03818 Conway NH 59/100 59/100
98 03846 Jackson NH 59/100 59/100
99 03870 Rye NH 59/100 59/100
100 03812 Bartlett NH 60/100 60/100

Methodology

The Home Safety Score (0-100) combines four data dimensions: EPA water violation history, lead exposure risk from infrastructure and sampling data, county-level EPA radon zone classification, and FEMA flood claim records. A score of 0 indicates maximum risk across all dimensions.

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: 2026-06-04.

Frequently Asked Questions

What does a low Home Safety Score mean?

A score below 40 (grade F) means the ZIP code has multiple overlapping risk factors: frequent EPA violations, elevated lead levels, high radon zone, and/or significant flood history. It reflects cumulative environmental risk, not necessarily current water quality.

Can a ZIP code improve its Safety Score?

Yes. Scores are recalculated as EPA data updates. When water systems resolve violations, replace lead service lines, or address infrastructure issues, scores improve over time.

Explore More Rankings

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

Related Rankings

Water Safety 2026 EPA violations and water quality scores Lead Risk 2026 Lead pipe infrastructure and EPA exceedances Infrastructure 2026 Aging pipes, system age and remediation costs
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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