Missouri — 3rd District
119th Congress · 122 ZIP codes · Avg score 71/100 · Grade B · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 122 ZIP codes in Missouri's 3rd District: the district earns a grade B (71/100). 248 EPA violations on record, 15 health-based.
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Missouri's 3rd District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 63338 | Cottleville | 83 | B | 0 |
| 2 | 63350 | High Hill | 83 | B | 0 |
| 3 | 63351 | Jonesburg | 83 | B | 0 |
| 4 | 63361 | Montgomery City | 83 | B | 0 |
| 5 | 63363 | New Florence | 83 | B | 1 |
| 6 | 65010 | Ashland | 83 | B | 0 |
| 7 | 65025 | Clarksburg | 83 | B | 0 |
| 8 | 65032 | Eugene | 83 | B | 1 |
| 9 | 65050 | Latham | 83 | B | 0 |
| 10 | 65054 | Loose Creek | 83 | B | 1 |
| 11 | 65058 | Meta | 83 | B | 1 |
| 12 | 65063 | New Bloomfield | 83 | B | 1 |
| 13 | 65068 | Prairie Home | 83 | B | 1 |
| 14 | 65074 | Russellville | 83 | B | 0 |
| 15 | 65081 | Tipton | 83 | B | 0 |
| 16 | 65082 | Tuscumbia | 83 | B | 0 |
| 17 | 65102 | Jefferson City | 83 | B | 0 |
| 18 | 65103 | Jefferson City | 83 | B | 0 |
| 19 | 65104 | Jefferson City | 83 | B | 0 |
| 20 | 65105 | Jefferson City | 83 | B | 0 |
| 21 | 65106 | Jefferson City | 83 | B | 0 |
| 22 | 65107 | Jefferson City | 83 | B | 0 |
| 23 | 65108 | Jefferson City | 83 | B | 0 |
| 24 | 65110 | Jefferson City | 83 | B | 0 |
| 25 | 65111 | Jefferson City | 83 | B | 0 |
| 26 | 65212 | Columbia | 83 | B | 1 |
| 27 | 65237 | Bunceton | 83 | B | 1 |
| 28 | 65276 | Pilot Grove | 83 | B | 0 |
| 29 | 65299 | Columbia | 83 | B | 1 |
| 30 | 65348 | Otterville | 83 | B | 1 |
| 31 | 65441 | Bourbon | 83 | B | 1 |
| 32 | 65535 | Leasburg | 83 | B | 0 |
| 33 | 63333 | Bellflower | 82 | B | 2 |
| 34 | 63622 | Belgrade | 82 | B | 2 |
| 35 | 63631 | Caledonia | 82 | B | 2 |
| 36 | 63660 | Mineral Point | 82 | B | 8 (1 health) |
| 37 | 65018 | California | 82 | B | 2 (1 health) |
| 38 | 65066 | Owensville | 82 | B | 14 (1 health) |
| 39 | 65231 | Auxvasse | 82 | B | 2 |
| 40 | 65287 | Wooldridge | 82 | B | 3 |
| 41 | 65453 | Cuba | 82 | B | 2 |
| 42 | 65486 | Iberia | 82 | B | 3 (1 health) |
| 43 | 63359 | Middletown | 81 | B | 6 (2 health) |
| 44 | 65001 | Argyle | 81 | B | 5 |
| 45 | 65023 | Centertown | 81 | B | 2 |
| 46 | 65034 | Fortuna | 81 | B | 7 (2 health) |
| 47 | 65443 | Brinktown | 81 | B | 2 |
| 48 | 65262 | Kingdom City | 80 | B | 3 |
| 49 | 65035 | Freeburg | 79 | B | 6 |
| 50 | 65233 | Boonville | 79 | B | 5 |
Overview
Missouri's 3rd District encompasses 122 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (71/100).
248 EPA violations have been recorded across this district's water systems. 15 are health-based violations. About 50% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Consumer Confidence Report Rule - 84 violations
- Surface Water Treatment Rule - 48 violations
- Stage 1 DBP Rule - 30 violations
- Lead and Copper Rule - 25 violations
- Stage 2 DBP Rule - 24 violations
Housing Context
Homes in this district were built on average around 1981 (~45 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 122 ZIP codes in Missouri's 3rd District.