Connecticut — 2nd District
119th Congress · 119 ZIP codes · Avg score 61/100 · Grade C · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 119 ZIP codes in Connecticut's 2nd District: the district earns a grade C (61/100). 710 EPA violations on record, 140 health-based.
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Connecticut's 2nd District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 06080 | Suffield | 99 | A | 0 |
| 2 | 06078 | Suffield | 95 | A | 0 |
| 3 | 06083 | Enfield | 94 | A | 24 (1 health) |
| 4 | 06447 | Marlborough | 91 | A | 2 (1 health) |
| 5 | 06373 | Oneco | 83 | B | 0 |
| 6 | 06377 | Sterling | 83 | B | 0 |
| 7 | 06239 | Danielson | 82 | B | 2 (1 health) |
| 8 | 06280 | Windham | 82 | B | 2 (1 health) |
| 9 | 06033 | Glastonbury | 81 | B | 9 (3 health) |
| 10 | 06082 | Enfield | 81 | B | 24 (1 health) |
| 11 | 06248 | Hebron | 78 | B | 12 (2 health) |
| 12 | 06250 | Mansfield Center | 78 | B | 1 |
| 13 | 06259 | Pomfret Center | 78 | B | 12 (1 health) |
| 14 | 06262 | Quinebaug | 78 | B | 8 (2 health) |
| 15 | 06237 | Columbia | 77 | B | 2 |
| 16 | 06238 | Coventry | 76 | B | 7 (4 health) |
| 17 | 06226 | Willimantic | 74 | B | 3 (1 health) |
| 18 | 06232 | Andover | 74 | B | 13 (3 health) |
| 19 | 06277 | Thompson | 74 | B | 10 (3 health) |
| 20 | 06278 | Ashford | 74 | B | 28 (3 health) |
| 21 | 06374 | Plainfield | 74 | B | 8 (3 health) |
| 22 | 06029 | Ellington | 73 | B | 0 |
| 23 | 06260 | Putnam | 71 | B | 12 (3 health) |
| 24 | 06071 | Somers | 70 | B | 1 |
| 25 | 06084 | Tolland | 70 | B | 27 (7 health) |
| 26 | 06388 | West Mystic | 70 | B | 0 |
| 27 | 06384 | Voluntown | 69 | C | 2 (1 health) |
| 28 | 06469 | Moodus | 69 | C | 6 (1 health) |
| 29 | 06234 | Brooklyn | 68 | C | 32 (6 health) |
| 30 | 06382 | Uncasville | 68 | C | 5 (2 health) |
| 31 | 06043 | Bolton | 67 | C | 28 (7 health) |
| 32 | 06075 | Stafford | 66 | C | 3 (1 health) |
| 33 | 06093 | West Suffield | 66 | C | 0 |
| 34 | 06279 | Willington | 66 | C | 15 (5 health) |
| 35 | 06331 | Canterbury | 66 | C | 11 (5 health) |
| 36 | 06370 | Oakdale | 66 | C | 9 (1 health) |
| 37 | 06415 | Colchester | 66 | C | 25 (1 health) |
| 38 | 06066 | Vernon Rockville | 65 | C | 0 |
| 39 | 06419 | Killingworth | 65 | C | 8 (2 health) |
| 40 | 06338 | Mashantucket | 64 | C | 7 (1 health) |
| 41 | 06365 | Preston | 64 | C | 10 (2 health) |
| 42 | 06375 | Quaker Hill | 64 | C | 2 |
| 43 | 06423 | East Haddam | 64 | C | 11 (1 health) |
| 44 | 06231 | Amston | 63 | C | 0 |
| 45 | 06242 | Eastford | 63 | C | 0 |
| 46 | 06246 | Grosvenor Dale | 63 | C | 0 |
| 47 | 06247 | Hampton | 63 | C | 0 |
| 48 | 06251 | Mansfield Depot | 63 | C | 0 |
| 49 | 06255 | North Grosvenordale | 63 | C | 0 |
| 50 | 06268 | Storrs Mansfield | 63 | C | 0 |
Overview
Connecticut's 2nd District encompasses 119 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (61/100).
710 EPA violations have been recorded across this district's water systems. 140 are health-based violations. About 55% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Surface Water Treatment Rule - 178 violations
- Stage 2 DBP Rule - 148 violations
- Stage 1 DBP Rule - 111 violations
- Consumer Confidence Report Rule - 108 violations
- Lead and Copper Rule - 68 violations
Housing Context
Homes in this district were built on average around 1967 (~59 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 119 ZIP codes in Connecticut's 2nd District.