Iowa — 2nd District
119th Congress · 267 ZIP codes · Avg score 57/100 · 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 Iowa's 2nd District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 50006 | Alden | 70 | B | 0 |
| 2 | 50173 | Montour | 70 | B | 0 |
| 3 | 50258 | Union | 70 | B | 0 |
| 4 | 50421 | Belmond | 70 | B | 1 |
| 5 | 50428 | Clear Lake | 70 | B | 0 |
| 6 | 50459 | Northwood | 70 | B | 1 |
| 7 | 50468 | Rockford | 70 | B | 0 |
| 8 | 50471 | Rudd | 70 | B | 0 |
| 9 | 50479 | Thornton | 70 | B | 0 |
| 10 | 50601 | Ackley | 70 | B | 1 |
| 11 | 50621 | Conrad | 70 | B | 0 |
| 12 | 50624 | Dike | 70 | B | 0 |
| 13 | 50704 | Waterloo | 70 | B | 0 |
| 14 | 52035 | Colesburg | 70 | B | 0 |
| 15 | 52047 | Farmersburg | 70 | B | 0 |
| 16 | 52049 | Garnavillo | 70 | B | 0 |
| 17 | 52068 | Peosta | 70 | B | 0 |
| 18 | 52135 | Clermont | 70 | B | 0 |
| 19 | 52142 | Fayette | 70 | B | 1 |
| 20 | 52144 | Fort Atkinson | 70 | B | 0 |
| 21 | 52151 | Lansing | 70 | B | 0 |
| 22 | 52158 | Marquette | 70 | B | 0 |
| 23 | 52168 | Spillville | 70 | B | 0 |
| 24 | 52169 | Wadena | 70 | B | 0 |
| 25 | 52171 | Waucoma | 70 | B | 0 |
| 26 | 52227 | Ely | 70 | B | 0 |
| 27 | 52313 | Mount Auburn | 70 | B | 0 |
| 28 | 52314 | Mount Vernon | 70 | B | 0 |
| 29 | 52336 | Springville | 70 | B | 1 |
| 30 | 50460 | Orchard | 69 | C | 2 |
| 31 | 50625 | Dumont | 69 | C | 3 |
| 32 | 50630 | Fredericksburg | 69 | C | 2 |
| 33 | 52031 | Bellevue | 69 | C | 2 |
| 34 | 52147 | Hawkeye | 69 | C | 0 |
| 35 | 52155 | Lime Springs | 69 | C | 2 |
| 36 | 52332 | Shellsburg | 69 | C | 3 |
| 37 | 50435 | Floyd | 68 | C | 2 |
| 38 | 52154 | Lawler | 68 | C | 6 (2 health) |
| 39 | 52202 | Alburnett | 68 | C | 4 |
| 40 | 52223 | Delhi | 68 | C | 4 |
| 41 | 50461 | Osage | 67 | C | 0 |
| 42 | 52065 | New Vienna | 67 | C | 4 |
| 43 | 50122 | Hubbard | 66 | C | 0 |
| 44 | 50157 | Malcom | 66 | C | 0 |
| 45 | 50230 | Radcliffe | 66 | C | 0 |
| 46 | 50446 | Joice | 66 | C | 0 |
| 47 | 50457 | Meservey | 66 | C | 0 |
| 48 | 50604 | Aplington | 66 | C | 0 |
| 49 | 50620 | Colwell | 66 | C | 0 |
| 50 | 50627 | Eldora | 66 | C | 0 |
Overview
Iowa's 2nd District serving an estimated 3,942,083 residents encompasses 267 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (57/100).
3113 EPA violations have been recorded across this district's water systems. 112 are health-based violations. About 27% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Lead and Copper Rule — 598 violations
- Copper — 365 violations
- Haloacetic Acids (HAA5) — 364 violations
- Total Trihalomethanes (TTHM) — 352 violations
- Surface Water Treatment Rule — 285 violations
Housing Context
Homes in this district were built on average around 1955 (~71 years old). Older homes may have lead pipes or solder — consider a water filter if your home predates 1986.
Lead Alert: 2 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 267 ZIP codes in Iowa's 2nd District.