Highest Remediation Burden: Connecticut — 2026

Out of 154 ZIP codes with data in Connecticut, these are the areas where estimated safety remediation costs represent the largest share of median home value. See also: National Rankings | All Connecticut Rankings

Statistic	Value
ZIP codes ranked	154
Highest burden	0.5% of median home value
Median burden	0.2% of median home value
Median estimated cost	$600
State	Connecticut

Top 100 Highest Remediation Burden ZIP Codes

Rank	ZIP Code	City	State	Est. Cost	Median Home Value	Burden %
1	06382	Uncasville	CT	$1,200	$250,100	0.5%
2	06053	New Britain	CT	$800	$201,800	0.4%
3	06066	Vernon Rockville	CT	$900	$255,000	0.4%
4	06084	Tolland	CT	$1,100	$332,300	0.3%
5	06268	Storrs Mansfield	CT	$1,100	$328,600	0.3%
6	06351	Jewett City	CT	$900	$276,200	0.3%
7	06010	Bristol	CT	$800	$252,300	0.3%
8	06062	Plainville	CT	$800	$247,600	0.3%
9	06380	Taftville	CT	$600	$187,000	0.3%
10	06716	Wolcott	CT	$900	$299,400	0.3%
11	06776	New Milford	CT	$1,100	$380,800	0.3%
12	06226	Willimantic	CT	$500	$181,100	0.3%
13	06250	Mansfield Center	CT	$800	$286,500	0.3%
14	06042	Manchester	CT	$600	$219,200	0.3%
15	06607	Bridgeport	CT	$600	$218,500	0.3%
16	06608	Bridgeport	CT	$600	$222,900	0.3%
17	06610	Bridgeport	CT	$600	$224,700	0.3%
18	06811	Danbury	CT	$1,100	$405,800	0.3%
19	06088	East Windsor	CT	$500	$192,100	0.3%
20	06360	Norwich	CT	$600	$233,500	0.3%
21	06365	Preston	CT	$900	$343,200	0.3%
22	06416	Cromwell	CT	$800	$311,300	0.3%
23	06513	New Haven	CT	$600	$226,600	0.3%
24	06604	Bridgeport	CT	$600	$231,300	0.3%
25	06040	Manchester	CT	$600	$238,900	0.3%
26	06074	South Windsor	CT	$900	$354,500	0.3%
27	06418	Derby	CT	$600	$243,500	0.3%
28	06514	Hamden	CT	$600	$250,300	0.2%
29	06519	New Haven	CT	$600	$247,600	0.2%
30	06804	Brookfield	CT	$1,100	$452,300	0.2%
31	06026	East Granby	CT	$800	$354,400	0.2%
32	06037	Berlin	CT	$800	$345,600	0.2%
33	06415	Colchester	CT	$800	$340,700	0.2%
34	06450	Meriden	CT	$500	$220,400	0.2%
35	06512	East Haven	CT	$600	$265,200	0.2%
36	06516	West Haven	CT	$600	$265,200	0.2%
37	06810	Danbury	CT	$800	$351,400	0.2%
38	06002	Bloomfield	CT	$600	$269,000	0.2%
39	06401	Ansonia	CT	$600	$268,400	0.2%
40	06451	Meriden	CT	$500	$223,400	0.2%
41	06489	Southington	CT	$800	$360,600	0.2%
42	06605	Bridgeport	CT	$600	$273,100	0.2%
43	06606	Bridgeport	CT	$600	$272,100	0.2%
44	06082	Enfield	CT	$500	$239,800	0.2%
45	06096	Windsor Locks	CT	$500	$236,800	0.2%
46	06254	North Franklin	CT	$600	$288,200	0.2%
47	06339	Ledyard	CT	$600	$284,400	0.2%
48	06515	New Haven	CT	$600	$284,200	0.2%
49	06085	Unionville	CT	$800	$395,400	0.2%
50	06089	Weatogue	CT	$800	$407,300	0.2%
51	06334	Bozrah	CT	$600	$293,800	0.2%
52	06444	Marion	CT	$500	$251,600	0.2%
53	06032	Farmington	CT	$800	$419,200	0.2%
54	06070	Simsbury	CT	$800	$414,400	0.2%
55	06238	Coventry	CT	$600	$318,000	0.2%
56	06239	Danielson	CT	$500	$261,000	0.2%
57	06260	Putnam	CT	$500	$257,800	0.2%
58	06482	Sandy Hook	CT	$900	$465,400	0.2%
59	06511	New Haven	CT	$600	$313,400	0.2%
60	06517	Hamden	CT	$600	$313,000	0.2%
61	06518	Hamden	CT	$600	$307,900	0.2%
62	06801	Bethel	CT	$800	$426,500	0.2%
63	06001	Avon	CT	$800	$456,900	0.2%
64	06234	Brooklyn	CT	$500	$275,400	0.2%
65	06241	Dayville	CT	$500	$272,200	0.2%
66	06249	Lebanon	CT	$600	$337,700	0.2%
67	06277	Thompson	CT	$500	$274,500	0.2%
68	06457	Middletown	CT	$500	$279,500	0.2%
69	06467	Milldale	CT	$600	$339,700	0.2%
70	06492	Wallingford	CT	$600	$328,400	0.2%
71	06614	Stratford	CT	$600	$342,700	0.2%
72	06016	Broad Brook	CT	$500	$301,400	0.2%
73	06413	Clinton	CT	$600	$357,000	0.2%
74	06470	Newtown	CT	$900	$514,900	0.2%
75	06473	North Haven	CT	$600	$359,800	0.2%
76	06483	Seymour	CT	$600	$344,900	0.2%
77	06615	Stratford	CT	$600	$348,800	0.2%
78	06460	Milford	CT	$600	$372,900	0.2%
79	06471	North Branford	CT	$600	$364,900	0.2%
80	06472	Northford	CT	$600	$371,800	0.2%
81	06480	Portland	CT	$500	$305,800	0.2%
82	06033	Glastonbury	CT	$600	$399,500	0.1%
83	06035	Granby	CT	$500	$339,000	0.1%
84	06403	Beacon Falls	CT	$500	$323,900	0.1%
85	06405	Branford	CT	$600	$388,300	0.1%
86	06461	Milford	CT	$600	$395,800	0.1%
87	06479	Plantsville	CT	$500	$334,900	0.1%
88	06029	Ellington	CT	$500	$352,300	0.1%
89	06357	Niantic	CT	$500	$369,600	0.1%
90	06379	Pawcatuck	CT	$500	$364,700	0.1%
91	06410	Cheshire	CT	$600	$419,200	0.1%
92	06484	Shelton	CT	$600	$435,700	0.1%
93	06498	Westbrook	CT	$600	$423,500	0.1%
94	06524	Bethany	CT	$600	$418,900	0.1%
95	06013	Burlington	CT	$500	$393,900	0.1%
96	06019	Canton	CT	$500	$395,700	0.1%
97	06071	Somers	CT	$500	$379,300	0.1%
98	06093	West Suffield	CT	$500	$372,900	0.1%
99	06281	Woodstock	CT	$500	$396,300	0.1%
100	06455	Middlefield	CT	$500	$392,500	0.1%

Methodology

The remediation burden ratio is calculated as: estimated remediation cost / median home value. Remediation costs are the sum of applicable safety measures for each ZIP code based on EPA, FEMA, and state data:

Lead service line replacement — where lead exposure risk is elevated (based on housing age, water system data, and EPA sampling)
Radon home test - EPA zones are county-level potential categories, not home measurements; mitigation belongs only after a measured result
Whole-home water filtration — where contaminant levels exceed EPA guidelines
Flood insurance — in FEMA-designated flood zones with claim history
PFAS treatment — where PFAS detections have been reported

Median home values are from U.S. Census American Community Survey (ACS) estimates. Cost estimates use national average ranges from EPA, HUD, and industry data. Individual home costs may vary significantly based on specific conditions.

Last updated: 2026-08-31.

Frequently Asked Questions

What does "remediation cost relative to home value" mean?

This ratio compares the estimated cost of supported actions (lead pipes, a property-specific radon test, water filtration, and current flood-map verification) to the median home value in that ZIP code. County radon zones never add a mitigation-system cost.

How are remediation costs estimated?

Costs use published benchmarks for supported actions such as lead service line replacement, a property-specific radon test, and water filtration. A county radon zone does not trigger a mitigation-system estimate, and historical FEMA claims do not set an insurance premium.

Why does this matter for homebuyers?

In areas with high remediation burden, the cost of making a home safe can represent a large portion of the home's value. This is especially impactful in lower-value housing markets where a $15,000 remediation bill represents 10-30% of the home price. Standard home inspections may not identify all these issues.

Does a high ratio mean the home is unsafe?

Not necessarily. The ratio reflects potential costs based on area-level environmental data — not every home in the ZIP code will need all remediation work. However, it indicates elevated risk factors that buyers should investigate before purchasing.