Illinois — 4th District
119th Congress · 46 ZIP codes · Avg score 69/100 · Grade C · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 46 ZIP codes in Illinois's 4th District: the district earns a grade C (69/100). 642 EPA violations on record, 32 health-based.
Top Contaminants
ZIP Codes in This District
46 ZIP codes tracked in Illinois's 4th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 60526 | La Grange Park | 81 | B | 0 |
| 2 | 60454 | Oak Lawn | 80 | B | 3 |
| 3 | 60163 | Berkeley | 79 | B | 0 |
| 4 | 60402 | Berwyn | 77 | B | 2 |
| 5 | 60161 | Melrose Park | 74 | B | 14 |
| 6 | 60459 | Burbank | 74 | B | 7 (1 health) |
| 7 | 60521 | Hinsdale | 73 | B | 1 |
| 8 | 60499 | Bedford Park | 72 | B | 0 |
| 9 | 60608 | Chicago | 71 | B | 19 (1 health) |
| 10 | 60623 | Chicago | 71 | B | 19 (1 health) |
| 11 | 60632 | Chicago | 71 | B | 19 (1 health) |
| 12 | 60638 | Chicago | 71 | B | 19 (1 health) |
| 13 | 60670 | Chicago | 71 | B | 19 (1 health) |
| 14 | 60680 | Chicago | 71 | B | 19 (1 health) |
| 15 | 60701 | Chicago | 71 | B | 19 (1 health) |
| 16 | 60546 | Riverside | 69 | C | 1 |
| 17 | 60804 | Cicero | 69 | C | 7 (1 health) |
| 18 | 60290 | Chicago | 68 | C | 19 (1 health) |
| 19 | 60513 | Brookfield | 68 | C | 0 |
| 20 | 60664 | Chicago | 68 | C | 19 (1 health) |
| 21 | 60666 | Chicago | 68 | C | 19 (1 health) |
| 22 | 60668 | Chicago | 68 | C | 19 (1 health) |
| 23 | 60669 | Chicago | 68 | C | 19 (1 health) |
| 24 | 60673 | Chicago | 68 | C | 19 (1 health) |
| 25 | 60674 | Chicago | 68 | C | 19 (1 health) |
| 26 | 60675 | Chicago | 68 | C | 19 (1 health) |
| 27 | 60677 | Chicago | 68 | C | 19 (1 health) |
| 28 | 60678 | Chicago | 68 | C | 19 (1 health) |
| 29 | 60681 | Chicago | 68 | C | 19 (1 health) |
| 30 | 60682 | Chicago | 68 | C | 19 (1 health) |
| 31 | 60684 | Chicago | 68 | C | 19 (1 health) |
| 32 | 60685 | Chicago | 68 | C | 19 (1 health) |
| 33 | 60687 | Chicago | 68 | C | 19 (1 health) |
| 34 | 60690 | Chicago | 68 | C | 19 (1 health) |
| 35 | 60691 | Chicago | 68 | C | 19 (1 health) |
| 36 | 60693 | Chicago | 68 | C | 19 (1 health) |
| 37 | 60694 | Chicago | 68 | C | 19 (1 health) |
| 38 | 60697 | Chicago | 68 | C | 19 (1 health) |
| 39 | 60699 | Chicago | 68 | C | 19 (1 health) |
| 40 | 60534 | Lyons | 67 | C | 1 |
| 41 | 60165 | Stone Park | 66 | C | 2 |
| 42 | 60609 | Chicago | 66 | C | 19 (1 health) |
| 43 | 60629 | Chicago | 66 | C | 19 (1 health) |
| 44 | 60131 | Franklin Park | 60 | C | 6 |
| 45 | 60160 | Melrose Park | 59 | C | 14 |
| 46 | 60164 | Melrose Park | 59 | C | 14 |
Overview
Illinois's 4th District encompasses 46 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (69/100).
642 EPA violations have been recorded across this district's water systems. 32 are health-based violations. About 91% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Gross Beta - 180 violations
- Surface Water Treatment Rule - 105 violations
- Stage 2 DBP Rule - 68 violations
- Lead and Copper Rule - 67 violations
- Fecal Coliform - 60 violations
Housing Context
Homes in this district were built on average around 1943 (~83 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 46 ZIP codes in Illinois's 4th District.