2026 Rankings

Worst ZIP Codes for Homebuyers in New Hampshire — 2026

Last updated: April 13, 2026

282 ZIP codes ranked by Purchase Risk #1: ZIP 03838 (Glen, NH) - 64/100
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 highest-ranked areas for purchase risk. See also: National Worst ZIP Codes for Homebuyers — Hidden Risk Factors | All New Hampshire Rankings

Statistic Value
ZIP codes ranked 282
Highest value 64/100
Median value 33/100
State New Hampshire

Top 100 Worst ZIP Codes

Rank ZIP Code City State Purchase Risk Safety Score
1 03838 Glen NH 64/100 15/100
2 03812 Bartlett NH 63/100 60/100
3 03238 Glencliff NH 57/100 49/100
4 03849 Madison NH 55/100 12/100
5 03890 West Ossipee NH 55/100 45/100
6 03256 New Hampton NH 54/100 33/100
7 03042 Epping NH 53/100 50/100
8 03216 Andover NH 53/100 51/100
9 03245 Holderness NH 53/100 47/100
10 03275 Suncook NH 53/100 64/100
11 03842 Hampton NH 53/100 67/100
12 03101 Manchester NH 52/100 80/100
13 03818 Conway NH 52/100 59/100
14 03045 Goffstown NH 51/100 62/100
15 03301 Concord NH 50/100 53/100
16 03871 Rye Beach NH 50/100 50/100
17 03886 Tamworth NH 50/100 43/100
18 03047 Greenfield NH 49/100 53/100
19 03079 Salem NH 49/100 69/100
20 03234 Epsom NH 49/100 65/100
21 03307 Loudon NH 49/100 40/100
22 03741 Canaan NH 49/100 52/100
23 03816 Center Tuftonboro NH 49/100 31/100
24 03870 Rye NH 49/100 59/100
25 03076 Pelham NH 48/100 62/100
26 03223 Campton NH 48/100 52/100
27 03254 Moultonborough NH 48/100 41/100
28 03281 Weare NH 48/100 57/100
29 03869 Rollinsford NH 48/100 40/100
30 03811 Atkinson NH 47/100 66/100
31 03814 Center Ossipee NH 47/100 34/100
32 03882 Effingham NH 47/100 51/100
33 03077 Raymond NH 46/100 70/100
34 03303 Concord NH 46/100 53/100
35 03574 Bethlehem NH 46/100 52/100
36 03743 Claremont NH 46/100 77/100
37 03817 Chocorua NH 45/100 53/100
38 03846 Jackson NH 45/100 59/100
39 03872 Sanbornville NH 45/100 50/100
40 03885 Stratham NH 45/100 55/100
41 03266 Rumney NH 44/100 49/100
42 03431 Keene NH 44/100 73/100
43 03470 Winchester NH 44/100 69/100
44 03748 Enfield NH 44/100 70/100
45 03773 Newport NH 44/100 54/100
46 03823 Madbury NH 44/100 46/100
47 03864 Ossipee NH 44/100 38/100
48 03221 Bradford NH 43/100 53/100
49 03242 Henniker NH 43/100 54/100
50 03253 Meredith NH 43/100 78/100
51 03279 Warren NH 43/100 74/100
52 03580 Franconia NH 43/100 56/100
53 03809 Alton NH 43/100 55/100
54 03865 Plaistow NH 43/100 65/100
55 03878 Somersworth NH 43/100 71/100
56 03883 South Tamworth NH 43/100 53/100
57 03229 Contoocook NH 42/100 72/100
58 03458 Peterborough NH 42/100 67/100
59 03855 New Durham NH 42/100 73/100
60 03103 Manchester NH 41/100 75/100
61 03285 Thornton NH 41/100 53/100
62 03304 Bow NH 41/100 71/100
63 03765 Haverhill NH 41/100 73/100
64 03801 Portsmouth NH 41/100 77/100
65 03813 Center Conway NH 41/100 45/100
66 03845 Intervale NH 41/100 69/100
67 03867 Rochester NH 41/100 76/100
68 03264 Plymouth NH 40/100 77/100
69 03442 Bennington NH 40/100 70/100
70 03561 Littleton NH 40/100 75/100
71 03570 Berlin NH 40/100 83/100
72 03847 Kearsarge NH 40/100 40/100
73 03894 Wolfeboro NH 40/100 69/100
74 03102 Manchester NH 39/100 75/100
75 03582 Groveton NH 39/100 55/100
76 03608 Walpole NH 39/100 69/100
77 03740 Bath NH 39/100 75/100
78 03771 Monroe NH 39/100 78/100
79 03848 Kingston NH 39/100 56/100
80 03854 New Castle NH 39/100 70/100
81 03048 Greenville NH 38/100 55/100
82 03104 Manchester NH 38/100 75/100
83 03244 Hillsborough NH 38/100 69/100
84 03467 Westmoreland NH 38/100 58/100
85 03581 Gorham NH 38/100 70/100
86 03602 Alstead NH 38/100 75/100
87 03784 West Lebanon NH 38/100 63/100
88 03874 Seabrook NH 38/100 70/100
89 03031 Amherst NH 37/100 65/100
90 03249 Gilford NH 37/100 73/100
91 03441 Ashuelot NH 37/100 63/100
92 03584 Lancaster NH 37/100 70/100
93 03585 Lisbon NH 37/100 69/100
94 03603 Charlestown NH 37/100 58/100
95 03766 Lebanon NH 37/100 74/100
96 03777 Orford NH 37/100 75/100
97 03819 Danville NH 37/100 70/100
98 03861 Lee NH 37/100 71/100

Methodology

The Home Purchase Risk Score combines area indicators that may lead to added costs for homebuyers: water system violation records, lead service line indicators, county radon potential, flood zones and housing age. An indicator does not mean a home needs filtration, mitigation, insurance or upgrades; a home test or inspection decides that. These are factors that standard home inspections may not fully capture.

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: 2026-04-13.

Frequently Asked Questions

What is the Home Purchase Risk Score?

This score (0-100) estimates the hidden environmental costs a homebuyer may face: water filtration needs, lead pipe replacement, radon mitigation, flood insurance, and infrastructure upgrades. Higher scores mean more potential unexpected expenses after purchase.

What should homebuyers do in high-risk ZIP codes?

Request a water quality test, check for lead service lines with the utility, test for radon before closing, verify FEMA flood zone designation, and factor in potential remediation costs ($5,000-$30,000+) to your budget.

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 service-line indicators and system-level action-level 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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