Ohio — 3rd District
119th Congress · 78 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-06-03
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03
Top Contaminants
ZIP Codes in This District
78 ZIP codes tracked in Ohio's 3rd District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 43004 | Blacklick | 70 | B | 1 |
| 2 | 43016 | Dublin | 70 | B | 0 |
| 3 | 43069 | Reynoldsburg | 66 | C | 0 |
| 4 | 43137 | Lockbourne | 66 | C | 2 (1 health) |
| 5 | 43195 | Groveport | 66 | C | 0 |
| 6 | 43198 | Groveport | 66 | C | 0 |
| 7 | 43199 | Groveport | 66 | C | 0 |
| 8 | 43017 | Dublin | 65 | C | 0 |
| 9 | 43062 | Pataskala | 65 | C | 0 |
| 10 | 43082 | Westerville | 65 | C | 2 (2 health) |
| 11 | 43125 | Groveport | 65 | C | 0 |
| 12 | 43201 | Columbus | 65 | C | 14 (5 health) |
| 13 | 43205 | Columbus | 65 | C | 14 (5 health) |
| 14 | 43206 | Columbus | 65 | C | 14 (5 health) |
| 15 | 43211 | Columbus | 65 | C | 14 (5 health) |
| 16 | 43217 | Columbus | 65 | C | 14 (5 health) |
| 17 | 43218 | Columbus | 65 | C | 14 (5 health) |
| 18 | 43222 | Columbus | 65 | C | 14 (5 health) |
| 19 | 43231 | Columbus | 65 | C | 14 (5 health) |
| 20 | 43739 | Glenford | 65 | C | 4 |
| 21 | 43194 | Lockbourne | 61 | C | 2 (1 health) |
| 22 | 43068 | Reynoldsburg | 60 | C | 0 |
| 23 | 43086 | Westerville | 60 | C | 2 (2 health) |
| 24 | 43202 | Columbus | 60 | C | 14 (5 health) |
| 25 | 43203 | Columbus | 60 | C | 14 (5 health) |
| 26 | 43204 | Columbus | 60 | C | 14 (5 health) |
| 27 | 43207 | Columbus | 60 | C | 14 (5 health) |
| 28 | 43210 | Columbus | 60 | C | 14 (5 health) |
| 29 | 43212 | Columbus | 60 | C | 14 (5 health) |
| 30 | 43215 | Columbus | 60 | C | 14 (5 health) |
| 31 | 43216 | Columbus | 60 | C | 14 (5 health) |
| 32 | 43219 | Columbus | 60 | C | 14 (5 health) |
| 33 | 43220 | Columbus | 60 | C | 14 (5 health) |
| 34 | 43221 | Columbus | 60 | C | 14 (5 health) |
| 35 | 43224 | Columbus | 60 | C | 14 (5 health) |
| 36 | 43226 | Columbus | 60 | C | 14 (5 health) |
| 37 | 43228 | Columbus | 60 | C | 14 (5 health) |
| 38 | 43229 | Columbus | 60 | C | 14 (5 health) |
| 39 | 43234 | Columbus | 60 | C | 14 (5 health) |
| 40 | 43235 | Columbus | 60 | C | 14 (5 health) |
| 41 | 43236 | Columbus | 60 | C | 14 (5 health) |
| 42 | 43240 | Columbus | 60 | C | 14 (5 health) |
| 43 | 43251 | Columbus | 60 | C | 14 (5 health) |
| 44 | 43260 | Columbus | 60 | C | 14 (5 health) |
| 45 | 43266 | Columbus | 60 | C | 14 (5 health) |
| 46 | 43268 | Columbus | 60 | C | 14 (5 health) |
| 47 | 43270 | Columbus | 60 | C | 14 (5 health) |
| 48 | 43271 | Columbus | 60 | C | 14 (5 health) |
| 49 | 43272 | Columbus | 60 | C | 14 (5 health) |
| 50 | 43279 | Columbus | 60 | C | 14 (5 health) |
Overview
Ohio's 3rd District serving an estimated 65,900,038 residents encompasses 78 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (59/100).
663 EPA violations have been recorded across this district's water systems. 239 are health-based violations. About 69% 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 — 235 violations
- Consumer Confidence Report Rule — 188 violations
- Total Coliform — 138 violations
- Stage 2 DBP Rule — 95 violations
- Haloacetic Acids (HAA5) — 6 violations
Housing Context
Homes in this district were built on average around 1970 (~56 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 78 ZIP codes in Ohio's 3rd District.