Indiana — 4th District
119th Congress · 132 ZIP codes · Avg score 56/100 · Grade C · 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 Indiana's 4th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 46113 | Camby | 81 | B | 2 |
| 2 | 46372 | Roselawn | 79 | B | 3 |
| 3 | 46381 | Thayer | 79 | B | 3 |
| 4 | 47922 | Brook | 77 | B | 2 |
| 5 | 46158 | Mooresville | 74 | B | 5 |
| 6 | 46349 | Lake Village | 74 | B | 10 (1 health) |
| 7 | 47948 | Goodland | 73 | B | 9 |
| 8 | 46160 | Morgantown | 71 | B | 20 (6 health) |
| 9 | 46035 | Colfax | 70 | B | 0 |
| 10 | 46071 | Thorntown | 70 | B | 0 |
| 11 | 46112 | Brownsburg | 70 | B | 0 |
| 12 | 46917 | Camden | 70 | B | 0 |
| 13 | 47932 | Covington | 70 | B | 0 |
| 14 | 47989 | Waveland | 70 | B | 0 |
| 15 | 47996 | West Lafayette | 70 | B | 0 |
| 16 | 46074 | Westfield | 69 | C | 3 |
| 17 | 47963 | Morocco | 69 | C | 14 |
| 18 | 46075 | Whitestown | 68 | C | 1 |
| 19 | 46151 | Martinsville | 68 | C | 5 |
| 20 | 46164 | Nineveh | 68 | C | 9 |
| 21 | 46166 | Paragon | 68 | C | 2 |
| 22 | 46167 | Pittsboro | 68 | C | 0 |
| 23 | 46122 | Danville | 67 | C | 1 |
| 24 | 47954 | Ladoga | 67 | C | 3 |
| 25 | 46041 | Frankfort | 66 | C | 2 |
| 26 | 47907 | West Lafayette | 66 | C | 0 |
| 27 | 46111 | Brooklyn | 65 | C | 23 |
| 28 | 46149 | Lizton | 65 | C | 7 (1 health) |
| 29 | 46308 | Crown Point | 65 | C | 22 |
| 30 | 47965 | New Market | 65 | C | 6 (1 health) |
| 31 | 47991 | West Lebanon | 65 | C | 2 |
| 32 | 46172 | Roachdale | 64 | C | 10 (1 health) |
| 33 | 46310 | Demotte | 64 | C | 12 |
| 34 | 47949 | Hillsboro | 64 | C | 5 (2 health) |
| 35 | 47971 | Oxford | 64 | C | 2 |
| 36 | 47993 | Williamsport | 64 | C | 60 (6 health) |
| 37 | 46077 | Zionsville | 63 | C | 2 |
| 38 | 46392 | Wheatfield | 63 | C | 0 |
| 39 | 47435 | Helmsburg | 63 | C | 0 |
| 40 | 47901 | Lafayette | 63 | C | 21 (4 health) |
| 41 | 47903 | Lafayette | 63 | C | 21 (4 health) |
| 42 | 47904 | Lafayette | 63 | C | 21 (4 health) |
| 43 | 47929 | Chalmers | 63 | C | 23 (4 health) |
| 44 | 46065 | Rossville | 62 | C | 3 |
| 45 | 46135 | Greencastle | 62 | C | 3 |
| 46 | 46147 | Jamestown | 62 | C | 0 |
| 47 | 46171 | Reelsville | 62 | C | 1 |
| 48 | 47987 | Veedersburg | 62 | C | 0 |
| 49 | 46168 | Plainfield | 61 | C | 9 |
| 50 | 47448 | Nashville | 61 | C | 14 |
Overview
Indiana's 4th District serving an estimated 1,564,150 residents encompasses 132 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (56/100).
1182 EPA violations have been recorded across this district's water systems. 145 are health-based violations. About 59% 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 — 211 violations
- Stage 1 DBP Rule — 170 violations
- Consumer Confidence Report Rule — 144 violations
- Total Trihalomethanes (TTHM) — 68 violations
- Contaminant 0700 — 66 violations
Housing Context
Homes in this district were built on average around 1968 (~58 years old). Older homes may have lead pipes or solder — consider a water filter if your home predates 1986.
Lead Alert: 3 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 132 ZIP codes in Indiana's 4th District.