Massachusetts — 5th District
119th Congress · 45 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 45 ZIP codes in Massachusetts's 5th District: the district earns a grade C (59/100). 35 EPA violations on record, 5 health-based.
Top Contaminants
ZIP Codes in This District
45 ZIP codes tracked in Massachusetts's 5th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 02482 | Wellesley | 74 | B | 2 |
| 2 | 01703 | Framingham | 70 | B | 0 |
| 3 | 01705 | Framingham | 70 | B | 0 |
| 4 | 02180 | Stoneham | 70 | B | 0 |
| 5 | 01754 | Maynard | 69 | C | 2 |
| 6 | 01888 | Woburn | 68 | C | 1 |
| 7 | 02151 | Revere | 67 | C | 0 |
| 8 | 02152 | Winthrop | 67 | C | 1 |
| 9 | 01704 | Framingham | 66 | C | 0 |
| 10 | 02454 | Waltham | 65 | C | 2 |
| 11 | 02493 | Weston | 65 | C | 0 |
| 12 | 01807 | Woburn | 64 | C | 1 |
| 13 | 01808 | Woburn | 64 | C | 1 |
| 14 | 01813 | Woburn | 64 | C | 1 |
| 15 | 01815 | Woburn | 64 | C | 1 |
| 16 | 02453 | Waltham | 64 | C | 2 |
| 17 | 02471 | Watertown | 64 | C | 1 |
| 18 | 02477 | Watertown | 64 | C | 1 |
| 19 | 01773 | Lincoln | 63 | C | 1 |
| 20 | 01776 | Sudbury | 63 | C | 1 |
| 21 | 01778 | Wayland | 63 | C | 1 |
| 22 | 02420 | Lexington | 63 | C | 1 |
| 23 | 02421 | Lexington | 63 | C | 1 |
| 24 | 02472 | Watertown | 63 | C | 1 |
| 25 | 02478 | Belmont | 63 | C | 1 |
| 26 | 01701 | Framingham | 60 | C | 0 |
| 27 | 01702 | Framingham | 60 | C | 0 |
| 28 | 01890 | Winchester | 60 | C | 0 |
| 29 | 02476 | Arlington | 60 | C | 0 |
| 30 | 02451 | Waltham | 59 | C | 2 |
| 31 | 02452 | Waltham | 59 | C | 2 |
| 32 | 01760 | Natick | 58 | C | 1 |
| 33 | 01801 | Woburn | 58 | C | 1 |
| 34 | 02138 | Cambridge | 58 | C | 0 |
| 35 | 02238 | Cambridge | 56 | C | 0 |
| 36 | 02474 | Arlington | 55 | C | 0 |
| 37 | 02153 | Medford | 46 | D | 2 (2 health) |
| 38 | 02176 | Melrose | 43 | D | 1 (1 health) |
| 39 | 01731 | Hanscom Afb | 40 | D | 0 |
| 40 | 02156 | West Medford | 40 | D | 0 |
| 41 | 02456 | New Town | 40 | D | 0 |
| 42 | 02475 | Arlington Heights | 40 | D | 0 |
| 43 | 02479 | Waverley | 40 | D | 0 |
| 44 | 02155 | Medford | 36 | F | 2 (2 health) |
| 45 | 02148 | Malden | 33 | F | 1 |
Overview
Massachusetts's 5th District encompasses 45 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (59/100).
35 EPA violations have been recorded across this district's water systems. 5 are health-based violations. About 60% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Stage 1 DBP Rule - 15 violations
- Consumer Confidence Report Rule - 7 violations
- Contaminant 1039 - 6 violations
- Contaminant 4002 - 4 violations
- Chlorite - 1 violation
Housing Context
Homes in this district were built on average around 1952 (~74 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Lead Alert: 1 ZIP code in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.
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 45 ZIP codes in Massachusetts's 5th District.