2026 Rankings

Safest ZIP Codes in New Hampshire — Safety Scores 2026

Last updated: August 14, 2026

48 ZIP codes ranked by Safety Score #1: ZIP 03055 (Milford, NH) - 83/100
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 48 ZIP codes with data in New Hampshire, these are the highest-ranked areas for safety score. See also: National Highest Home Safety Scores in America | All New Hampshire Rankings

Statistic Value
ZIP codes ranked 48
Highest value 83/100
Median value 67/100
State New Hampshire

Top 48 Highest-Scoring ZIP Codes

Rank ZIP Code City State Safety Score Safety Score
1 03055 Milford NH 83/100 83/100
2 03060 Nashua NH 83/100 83/100
3 03062 Nashua NH 83/100 83/100
4 03063 Nashua NH 83/100 83/100
5 03064 Nashua NH 83/100 83/100
6 03077 Raymond NH 83/100 83/100
7 03222 Bristol NH 83/100 83/100
8 03235 Franklin NH 83/100 83/100
9 03257 New London NH 83/100 83/100
10 03264 Plymouth NH 83/100 83/100
11 03301 Concord NH 83/100 83/100
12 03303 Concord NH 83/100 83/100
13 03431 Keene NH 83/100 83/100
14 03561 Littleton NH 83/100 83/100
15 03570 Berlin NH 83/100 83/100
16 03755 Hanover NH 83/100 83/100
17 03766 Lebanon NH 83/100 83/100
18 03784 West Lebanon NH 83/100 83/100
19 03857 Newmarket NH 83/100 83/100
20 03246 Laconia NH 82/100 82/100
21 03458 Peterborough NH 82/100 82/100
22 03748 Enfield NH 82/100 82/100
23 03229 Contoocook NH 81/100 81/100
24 03054 Merrimack NH 75/100 75/100
25 03052 Litchfield NH 67/100 67/100
26 03103 Manchester NH 67/100 67/100
27 03106 Hooksett NH 67/100 67/100
28 03109 Manchester NH 67/100 67/100
29 03110 Bedford NH 67/100 67/100
30 03452 Jaffrey NH 67/100 67/100
31 03833 Exeter NH 67/100 67/100
32 03840 Greenland NH 67/100 67/100
33 03038 Derry NH 66/100 66/100
34 03053 Londonderry NH 66/100 66/100
35 03087 Windham NH 66/100 66/100
36 03275 Suncook NH 66/100 66/100
37 03801 Portsmouth NH 66/100 66/100
38 03811 Atkinson NH 66/100 66/100
39 03841 Hampstead NH 66/100 66/100
40 03854 New Castle NH 66/100 66/100
41 03862 North Hampton NH 66/100 66/100
42 03885 Stratham NH 66/100 66/100
43 03079 Salem NH 65/100 65/100
44 03870 Rye NH 65/100 65/100
45 03874 Seabrook NH 65/100 65/100
46 03842 Hampton NH 64/100 64/100
47 03865 Plaistow NH 64/100 64/100
48 03051 Hudson NH 63/100 63/100

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. A score requires all domains.

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 makes a ZIP code score highly?

Higher scores come from favorable measured results for water compliance, the PFAS MCL screen, radon zone, and annual AQI. The score is a screening metric, not a safety certification.

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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