Illinois — 16th District
119th Congress · 247 ZIP codes · Avg score 51/100 · Grade D · Updated 2026-06-03
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Illinois's 16th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 60407 | Braceville | 70 | B | 0 |
| 2 | 61041 | Hanover | 70 | B | 0 |
| 3 | 61063 | Pecatonica | 70 | B | 0 |
| 4 | 61084 | Stillman Valley | 70 | B | 0 |
| 5 | 61088 | Winnebago | 70 | B | 0 |
| 6 | 61317 | Cherry | 70 | B | 0 |
| 7 | 61329 | Ladd | 70 | B | 0 |
| 8 | 61361 | Sheffield | 70 | B | 0 |
| 9 | 61362 | Spring Valley | 70 | B | 0 |
| 10 | 61369 | Toluca | 70 | B | 0 |
| 11 | 61421 | Bradford | 70 | B | 0 |
| 12 | 61525 | Dunlap | 70 | B | 0 |
| 13 | 61529 | Elmwood | 70 | B | 0 |
| 14 | 61536 | Hanna City | 70 | B | 0 |
| 15 | 61610 | Creve Coeur | 70 | B | 0 |
| 16 | 61738 | El Paso | 70 | B | 0 |
| 17 | 61760 | Minonk | 70 | B | 0 |
| 18 | 61266 | Moline | 69 | C | 2 |
| 19 | 61540 | Lacon | 69 | C | 0 |
| 20 | 61755 | Mackinaw | 69 | C | 0 |
| 21 | 61020 | Davis Junction | 68 | C | 2 |
| 22 | 61049 | Lindenwood | 68 | C | 1 |
| 23 | 61054 | Mount Morris | 68 | C | 1 |
| 24 | 61517 | Brimfield | 68 | C | 5 |
| 25 | 61545 | Lowpoint | 68 | C | 1 |
| 26 | 61561 | Roanoke | 68 | C | 1 |
| 27 | 61747 | Hopedale | 68 | C | 2 |
| 28 | 61410 | Abingdon | 67 | C | 4 |
| 29 | 60437 | Kinsman | 66 | C | 0 |
| 30 | 61018 | Dakota | 66 | C | 0 |
| 31 | 61039 | German Valley | 66 | C | 1 |
| 32 | 61273 | Orion | 66 | C | 19 (1 health) |
| 33 | 61349 | Ohio | 66 | C | 0 |
| 34 | 61353 | Paw Paw | 66 | C | 0 |
| 35 | 61359 | Seatonville | 66 | C | 0 |
| 36 | 61375 | Varna | 66 | C | 3 (1 health) |
| 37 | 61439 | Henderson | 66 | C | 23 (1 health) |
| 38 | 61472 | Rio | 66 | C | 0 |
| 39 | 61533 | Glasford | 66 | C | 2 (1 health) |
| 40 | 61541 | La Rose | 66 | C | 0 |
| 41 | 61548 | Metamora | 66 | C | 16 (1 health) |
| 42 | 61721 | Armington | 66 | C | 0 |
| 43 | 61733 | Deer Creek | 66 | C | 0 |
| 44 | 61742 | Goodfield | 66 | C | 0 |
| 45 | 60424 | Gardner | 65 | C | 0 |
| 46 | 60444 | Mazon | 65 | C | 1 |
| 47 | 61312 | Arlington | 65 | C | 8 |
| 48 | 61424 | Camp Grove | 65 | C | 3 |
| 49 | 61462 | Monmouth | 65 | C | 10 (2 health) |
| 50 | 61467 | Oneida | 65 | C | 2 |
Overview
Illinois's 16th District serving an estimated 7,756,176 residents encompasses 247 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is D (51/100).
1892 EPA violations have been recorded across this district's water systems. 230 are health-based violations. About 49% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Stage 2 DBP Rule — 284 violations
- Lead and Copper Rule — 236 violations
- Surface Water Treatment Rule — 203 violations
- Gross Beta — 151 violations
- Stage 1 DBP Rule — 143 violations
Housing Context
Homes in this district were built on average around 1958 (~68 years old). Older homes may have lead pipes or solder — consider a water filter if your home predates 1986.
Lead Alert: 35 ZIP codes 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 247 ZIP codes in Illinois's 16th District.