ZIP Codes with Highest Flood Risk in Connecticut

Out of 293 ZIP codes with data in Connecticut, these are the highest-ranked areas for historical nfip claims. See also: National ZIP Codes with the Most Historical NFIP Claims | All Connecticut Rankings

Statistic	Value
ZIP codes ranked	293
Highest value	3,133 claims
Median value	15 claims
State	Connecticut

Top 100 Worst ZIP Codes

Rank	ZIP Code	City	State	Historical NFIP Claims	Safety Score
1	06460	Milford	CT	3,133 claims	50/100
2	06824	Fairfield	CT	1,948 claims	50/100
3	06880	Westport	CT	1,891 claims	50/100
4	06512	East Haven	CT	1,832 claims	50/100
5	06854	Norwalk	CT	985 claims	66/100
6	06902	Stamford	CT	824 claims	—
7	06475	Old Saybrook	CT	789 claims	50/100
8	06405	Branford	CT	748 claims	50/100
9	06870	Old Greenwich	CT	703 claims	50/100
10	06820	Darien	CT	625 claims	50/100
11	06615	Stratford	CT	613 claims	50/100
12	06443	Madison	CT	584 claims	50/100
13	06853	Norwalk	CT	561 claims	66/100
14	06516	West Haven	CT	537 claims	50/100
15	06498	Westbrook	CT	481 claims	50/100
16	06413	Clinton	CT	450 claims	50/100
17	06437	Guilford	CT	429 claims	50/100
18	06371	Old Lyme	CT	389 claims	—
19	06604	Bridgeport	CT	366 claims	50/100
20	06340	Groton	CT	339 claims	55/100
21	06830	Greenwich	CT	314 claims	50/100
22	06518	Hamden	CT	285 claims	50/100
23	06606	Bridgeport	CT	266 claims	50/100
24	06855	Norwalk	CT	262 claims	49/100
25	06355	Mystic	CT	258 claims	64/100
26	06825	Fairfield	CT	251 claims	50/100
27	06010	Bristol	CT	232 claims	82/100
28	06360	Norwich	CT	213 claims	50/100
29	06831	Greenwich	CT	212 claims	50/100
30	06605	Bridgeport	CT	208 claims	50/100
31	06905	Stamford	CT	195 claims	50/100
32	06514	Hamden	CT	194 claims	50/100
33	06611	Trumbull	CT	194 claims	48/100
34	06810	Danbury	CT	190 claims	33/100
35	06117	West Hartford	CT	188 claims	100/100
36	06320	New London	CT	173 claims	64/100
37	06484	Shelton	CT	171 claims	50/100
38	06357	Niantic	CT	169 claims	36/100
39	06378	Stonington	CT	164 claims	66/100
40	06477	Orange	CT	164 claims	50/100
41	06473	North Haven	CT	161 claims	43/100
42	06451	Meriden	CT	154 claims	49/100
43	06897	Wilton	CT	148 claims	49/100
44	06430	Fairfield County	CT	141 claims	—
45	06492	Wallingford	CT	138 claims	41/100
46	06107	West Hartford	CT	130 claims	100/100
47	06776	New Milford	CT	128 claims	50/100
48	06878	Riverside	CT	128 claims	50/100
49	06497	Fairfield County	CT	127 claims	—
50	06488	Southbury	CT	126 claims	33/100
51	06807	Cos Cob	CT	124 claims	50/100
52	06478	Oxford	CT	114 claims	50/100
53	06840	New Canaan	CT	111 claims	50/100
54	06032	Farmington	CT	110 claims	81/100
55	06385	Waterford	CT	110 claims	64/100
56	06883	Weston	CT	107 claims	49/100
57	06614	Stratford	CT	99 claims	50/100
58	06052	New Britain	CT	98 claims	97/100
59	06513	New Haven	CT	97 claims	50/100
60	06450	Meriden	CT	96 claims	41/100
61	06070	Simsbury	CT	89 claims	69/100
62	06850	Norwalk	CT	88 claims	49/100
63	06525	Woodbridge	CT	87 claims	50/100
64	06062	Plainville	CT	77 claims	78/100
65	06109	Wethersfield	CT	77 claims	100/100
66	06489	Southington	CT	77 claims	77/100
67	06333	East Lyme	CT	74 claims	36/100
68	06118	East Hartford	CT	72 claims	100/100
69	06457	Middletown	CT	70 claims	46/100
70	06903	Stamford	CT	69 claims	50/100
71	06801	Bethel	CT	68 claims	36/100
72	06037	Berlin	CT	67 claims	67/100
73	06082	Enfield	CT	67 claims	81/100
74	06515	New Haven	CT	67 claims	50/100
75	06877	Ridgefield	CT	64 claims	42/100
76	06471	North Branford	CT	60 claims	50/100
77	06416	Cromwell	CT	59 claims	37/100
78	06002	Bloomfield	CT	57 claims	83/100
79	06890	Southport	CT	57 claims	50/100
80	06111	Newington	CT	56 claims	87/100
81	06480	Portland	CT	56 claims	66/100
82	06461	Milford	CT	54 claims	50/100
83	06851	Norwalk	CT	54 claims	49/100
84	06410	Cheshire	CT	53 claims	37/100
85	06426	Essex	CT	52 claims	67/100
86	06412	Chester	CT	51 claims	67/100
87	06795	Watertown	CT	49 claims	76/100
88	06607	Bridgeport	CT	46 claims	50/100
89	06483	Seymour	CT	44 claims	50/100
90	06108	East Hartford	CT	43 claims	100/100
91	06423	East Haddam	CT	42 claims	—
92	06033	Glastonbury	CT	41 claims	82/100
93	06418	Derby	CT	41 claims	50/100
94	06811	Danbury	CT	41 claims	33/100
95	06770	Naugatuck	CT	40 claims	65/100
96	06907	Stamford	CT	40 claims	50/100
97	06705	Waterbury	CT	39 claims	65/100
98	06716	Wolcott	CT	39 claims	46/100
99	06119	West Hartford	CT	38 claims	100/100
100	06438	Haddam	CT	38 claims	—

Methodology

This ranking uses historical FEMA National Flood Insurance Program claim records. The entity is not a complete inventory of properties, flood events, uninsured losses, or current FEMA map designations. ZIPs without claim evidence are unknown and are not ranked as zero or low risk.

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: 2026-08-31.

Frequently Asked Questions

What does this ranking show?

It shows historical NFIP claim counts for ZIP records where FEMA claim evidence is available. It does not determine the current flood zone or risk of a specific property.

Where does the claim data come from?

The records come from FEMA National Flood Insurance Program claims. They do not include a complete inventory of uninsured losses or current property-map designations.

ZIP Codes with Highest Flood Risk in Connecticut — 2026

Top 100 Worst ZIP Codes

Methodology

Frequently Asked Questions

What does this ranking show?

Where does the claim data come from?

Explore More Rankings

Related Rankings