Illinois — 12th District
119th Congress · 278 ZIP codes · Avg score 69/100 · Grade C · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 278 ZIP codes in Illinois's 12th District: the district earns a grade C (69/100). 968 EPA violations on record, 126 health-based.
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Illinois's 12th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 62953 | Joppa | 94 | A | 4 (1 health) |
| 2 | 62992 | Ullin | 93 | A | 2 |
| 3 | 62976 | Pulaski | 91 | A | 4 (1 health) |
| 4 | 62914 | Cairo | 85 | A | 0 |
| 5 | 62956 | Karnak | 85 | A | 2 |
| 6 | 62964 | Mounds | 85 | A | 11 |
| 7 | 62960 | Metropolis | 84 | B | 3 (1 health) |
| 8 | 62990 | Thebes | 84 | B | 2 |
| 9 | 62217 | Baldwin | 83 | B | 1 |
| 10 | 62219 | Beckemeyer | 83 | B | 0 |
| 11 | 62225 | Scott Air Force Base | 83 | B | 0 |
| 12 | 62233 | Chester | 83 | B | 0 |
| 13 | 62250 | Hoffman | 83 | B | 1 |
| 14 | 62289 | Summerfield | 83 | B | 0 |
| 15 | 62401 | Effingham | 83 | B | 0 |
| 16 | 62445 | Montrose | 83 | B | 0 |
| 17 | 62449 | Oblong | 83 | B | 0 |
| 18 | 62452 | Parkersburg | 83 | B | 0 |
| 19 | 62806 | Albion | 83 | B | 1 |
| 20 | 62849 | Iuka | 83 | B | 0 |
| 21 | 62854 | Kinmundy | 83 | B | 1 |
| 22 | 62855 | Lancaster | 83 | B | 0 |
| 23 | 62870 | Odin | 83 | B | 1 |
| 24 | 62871 | Omaha | 83 | B | 0 |
| 25 | 62875 | Patoka | 83 | B | 1 |
| 26 | 62882 | Sandoval | 83 | B | 1 |
| 27 | 62893 | Walnut Hill | 83 | B | 1 |
| 28 | 62898 | Woodlawn | 83 | B | 0 |
| 29 | 62905 | Alto Pass | 83 | B | 0 |
| 30 | 62915 | Cambria | 83 | B | 1 |
| 31 | 62916 | Campbell Hill | 83 | B | 0 |
| 32 | 62919 | Cave In Rock | 83 | B | 0 |
| 33 | 62920 | Cobden | 83 | B | 0 |
| 34 | 62924 | De Soto | 83 | B | 1 |
| 35 | 62977 | Raleigh | 83 | B | 1 |
| 36 | 62410 | Allendale | 82 | B | 3 |
| 37 | 62425 | Dundas | 82 | B | 3 (1 health) |
| 38 | 62450 | Olney | 82 | B | 114 (1 health) |
| 39 | 62473 | Watson | 82 | B | 1 (1 health) |
| 40 | 62803 | Hoyleton | 82 | B | 3 |
| 41 | 62814 | Bluford | 82 | B | 2 |
| 42 | 62816 | Bonnie | 82 | B | 3 |
| 43 | 62858 | Louisville | 82 | B | 2 |
| 44 | 62884 | Sesser | 82 | B | 3 |
| 45 | 62894 | Waltonville | 82 | B | 2 |
| 46 | 62895 | Wayne City | 82 | B | 2 |
| 47 | 62963 | Mound City | 82 | B | 0 |
| 48 | 62982 | Rosiclare | 82 | B | 1 (1 health) |
| 49 | 62987 | Stonefort | 82 | B | 2 |
| 50 | 62222 | Belleville | 81 | B | 14 (2 health) |
Overview
Illinois's 12th District encompasses 278 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (69/100).
968 EPA violations have been recorded across this district's water systems. 126 are health-based violations. About 54% 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 - 165 violations
- Stage 1 DBP Rule - 127 violations
- Consumer Confidence Report Rule - 126 violations
- Total Trihalomethanes (TTHM) - 119 violations
- Lead and Copper Rule - 103 violations
Housing Context
Homes in this district were built on average around 1973 (~53 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Lead Alert: 11 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 278 ZIP codes in Illinois's 12th District.