ZIP Codes with Highest Flood Risk in New Hampshire

Out of 200 ZIP codes with data in New Hampshire, these are the highest-ranked areas for flood claims. See also: National ZIP Codes with Highest Flood Risk | All New Hampshire Rankings

Statistic	Value
ZIP codes ranked	200
Highest value	969 claims
Median value	6 claims
State	New Hampshire

Top 100 Worst ZIP Codes

Rank	ZIP Code	City	State	Flood Claims	Safety Score
1	03842	Hampton	NH	969 claims	67/100
2	03870	Rye	NH	223 claims	59/100
3	03431	Keene	NH	180 claims	73/100
4	03045	Goffstown	NH	157 claims	62/100
5	03275	Suncook	NH	139 claims	64/100
6	03079	Salem	NH	134 claims	69/100
7	03833	Exeter	NH	102 claims	72/100
8	03077	Raymond	NH	101 claims	70/100
9	03874	Seabrook	NH	91 claims	70/100
10	03871	Rye Beach	NH	76 claims	50/100
11	03862	North Hampton	NH	65 claims	50/100
12	03054	Merrimack	NH	61 claims	72/100
13	03245	Holderness	NH	59 claims	47/100
14	03818	Conway	NH	56 claims	59/100
15	03814	Center Ossipee	NH	54 claims	34/100
16	03031	Amherst	NH	53 claims	65/100
17	03458	Peterborough	NH	49 claims	67/100
18	03223	Campton	NH	48 claims	52/100
19	03044	Fremont	NH	47 claims	70/100
20	03890	West Ossipee	NH	47 claims	45/100
21	03857	Newmarket	NH	46 claims	78/100
22	03053	Londonderry	NH	41 claims	76/100
23	03801	Portsmouth	NH	39 claims	77/100
24	03042	Epping	NH	38 claims	50/100
25	03820	Dover	NH	38 claims	78/100
26	03038	Derry	NH	37 claims	70/100
27	03246	Laconia	NH	36 claims	78/100
28	03766	Lebanon	NH	35 claims	74/100
29	03244	Hillsborough	NH	34 claims	69/100
30	03812	Bartlett	NH	34 claims	60/100
31	03264	Plymouth	NH	32 claims	77/100
32	03743	Claremont	NH	31 claims	77/100
33	03076	Pelham	NH	29 claims	62/100
34	03581	Gorham	NH	29 claims	70/100
35	03060	Nashua	NH	28 claims	78/100
36	03062	Nashua	NH	27 claims	78/100
37	03864	Ossipee	NH	27 claims	38/100
38	03110	Bedford	NH	26 claims	70/100
39	03824	Durham	NH	25 claims	78/100
40	03102	Manchester	NH	24 claims	75/100
41	03106	Hooksett	NH	23 claims	78/100
42	03221	Bradford	NH	22 claims	53/100
43	03234	Epsom	NH	22 claims	65/100
44	03262	North Woodstock	NH	20 claims	70/100
45	03590	North Stratford	NH	19 claims	55/100
46	03470	Winchester	NH	18 claims	69/100
47	03585	Lisbon	NH	18 claims	69/100
48	03851	Milton	NH	18 claims	69/100
49	03222	Bristol	NH	17 claims	73/100
50	03840	Greenland	NH	17 claims	45/100
51	03037	Deerfield	NH	16 claims	70/100
52	03285	Thornton	NH	16 claims	53/100
53	03301	Concord	NH	16 claims	53/100
54	03854	New Castle	NH	16 claims	70/100
55	03860	North Conway	NH	16 claims	63/100
56	03104	Manchester	NH	15 claims	75/100
57	03276	Tilton	NH	15 claims	69/100
58	03303	Concord	NH	15 claims	53/100
59	03584	Lancaster	NH	15 claims	70/100
60	03290	Nottingham	NH	14 claims	70/100
61	03103	Manchester	NH	13 claims	75/100
62	03582	Groveton	NH	13 claims	55/100
63	03838	Glen	NH	13 claims	15/100
64	03867	Rochester	NH	13 claims	76/100
65	03051	Hudson	NH	12 claims	70/100
66	03220	Belmont	NH	12 claims	53/100
67	03773	Newport	NH	12 claims	54/100
68	03217	Ashland	NH	11 claims	70/100
69	03442	Bennington	NH	11 claims	70/100
70	03741	Canaan	NH	11 claims	52/100
71	03055	Milford	NH	10 claims	82/100
72	03064	Nashua	NH	10 claims	83/100
73	03602	Alstead	NH	10 claims	75/100
74	03109	Manchester	NH	9 claims	80/100
75	03235	Franklin	NH	9 claims	83/100
76	03256	New Hampton	NH	9 claims	33/100
77	03561	Littleton	NH	9 claims	75/100
78	03755	Hanover	NH	9 claims	83/100
79	03777	Orford	NH	9 claims	75/100
80	03070	New Boston	NH	8 claims	63/100
81	03086	Wilton	NH	8 claims	75/100
82	03101	Manchester	NH	8 claims	80/100
83	03281	Weare	NH	8 claims	57/100
84	03304	Bow	NH	8 claims	71/100
85	03456	Marlow	NH	8 claims	63/100
86	03570	Berlin	NH	8 claims	83/100
87	03580	Franconia	NH	8 claims	56/100
88	03848	Kingston	NH	8 claims	56/100
89	03251	Lincoln	NH	7 claims	78/100
90	03252	Lochmere	NH	7 claims	75/100
91	03263	Pittsfield	NH	7 claims	75/100
92	03821	Dover	NH	7 claims	83/100
93	03827	East Kingston	NH	7 claims	75/100
94	03835	Farmington	NH	7 claims	75/100
95	03841	Hampstead	NH	7 claims	83/100
96	03033	Brookline	NH	6 claims	63/100
97	03087	Windham	NH	6 claims	75/100
98	03229	Contoocook	NH	6 claims	72/100
99	03279	Warren	NH	6 claims	74/100
100	03448	Gilsum	NH	6 claims	63/100

Methodology

Flood risk rankings use FEMA National Flood Insurance Program (NFIP) claim data. Total claims reflect historical flood events that resulted in insured property damage. High claim counts indicate areas with recurring flood exposure, which can compromise water infrastructure, introduce contaminant runoff, and damage home systems.

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

Why does flood history matter for home safety?

Flooding can contaminate drinking water supplies, damage water infrastructure, introduce sewage and chemical runoff, and compromise home foundations and electrical systems. Repeated flooding indicates persistent risk that affects long-term home safety.

Where does the flood data come from?

Flood claim data comes from the FEMA National Flood Insurance Program (NFIP), which tracks all insured flood losses by ZIP code. This includes claims from hurricanes, river flooding, storm surge, and heavy rainfall events.

ZIP Codes with Highest Flood Risk in New Hampshire —...

Top 100 Worst ZIP Codes

Methodology

Frequently Asked Questions

Why does flood history matter for home safety?

Where does the flood data come from?

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