Missouri — 3rd District
119th Congress · 98 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-06-03
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03
Top Contaminants
ZIP Codes in This District
98 ZIP codes tracked in Missouri's 3rd District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 63350 | High Hill | 83 | B | 0 |
| 2 | 63351 | Jonesburg | 83 | B | 0 |
| 3 | 63361 | Montgomery City | 83 | B | 0 |
| 4 | 63363 | New Florence | 83 | B | 1 |
| 5 | 63384 | Wellsville | 83 | B | 0 |
| 6 | 65050 | Latham | 83 | B | 0 |
| 7 | 65063 | New Bloomfield | 83 | B | 1 |
| 8 | 65074 | Russellville | 83 | B | 0 |
| 9 | 65081 | Tipton | 83 | B | 0 |
| 10 | 65082 | Tuscumbia | 83 | B | 0 |
| 11 | 65102 | Jefferson City | 83 | B | 0 |
| 12 | 65103 | Jefferson City | 83 | B | 0 |
| 13 | 65104 | Jefferson City | 83 | B | 0 |
| 14 | 65105 | Jefferson City | 83 | B | 0 |
| 15 | 65106 | Jefferson City | 83 | B | 0 |
| 16 | 65107 | Jefferson City | 83 | B | 0 |
| 17 | 65108 | Jefferson City | 83 | B | 0 |
| 18 | 65110 | Jefferson City | 83 | B | 0 |
| 19 | 65111 | Jefferson City | 83 | B | 0 |
| 20 | 65276 | Pilot Grove | 83 | B | 0 |
| 21 | 65324 | Climax Springs | 83 | B | 0 |
| 22 | 65535 | Leasburg | 83 | B | 0 |
| 23 | 63333 | Bellflower | 82 | B | 2 |
| 24 | 65032 | Eugene | 82 | B | 2 |
| 25 | 65034 | Fortuna | 82 | B | 14 (5 health) |
| 26 | 65066 | Owensville | 82 | B | 21 (1 health) |
| 27 | 65068 | Prairie Home | 82 | B | 2 |
| 28 | 65441 | Bourbon | 82 | B | 3 |
| 29 | 65453 | Cuba | 82 | B | 2 |
| 30 | 63359 | Middletown | 81 | B | 6 (2 health) |
| 31 | 63631 | Caledonia | 81 | B | 4 |
| 32 | 65018 | California | 81 | B | 5 (2 health) |
| 33 | 65231 | Auxvasse | 81 | B | 4 |
| 34 | 63660 | Mineral Point | 80 | B | 16 (3 health) |
| 35 | 65287 | Wooldridge | 80 | B | 7 |
| 36 | 65486 | Iberia | 80 | B | 10 (3 health) |
| 37 | 65025 | Clarksburg | 79 | B | 0 |
| 38 | 65052 | Linn Creek | 79 | B | 5 |
| 39 | 65262 | Kingdom City | 79 | B | 5 |
| 40 | 63091 | Rosebud | 78 | B | 0 |
| 41 | 65233 | Boonville | 78 | B | 7 |
| 42 | 65001 | Argyle | 77 | B | 13 |
| 43 | 65046 | Jamestown | 77 | B | 2 |
| 44 | 65787 | Roach | 77 | B | 7 |
| 45 | 65026 | Eldon | 76 | B | 14 (2 health) |
| 46 | 65043 | Holts Summit | 76 | B | 19 (2 health) |
| 47 | 65059 | Mokane | 75 | B | 4 |
| 48 | 65786 | Macks Creek | 75 | B | 11 |
| 49 | 65013 | Belle | 74 | B | 14 |
| 50 | 65065 | Osage Beach | 74 | B | 3 |
Overview
Missouri's 3rd District serving an estimated 1,015,843 residents encompasses 98 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (72/100).
609 EPA violations have been recorded across this district's water systems. 43 are health-based violations. About 52% 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 — 145 violations
- Surface Water Treatment Rule — 87 violations
- Stage 1 DBP Rule — 34 violations
- Lead and Copper Rule — 33 violations
- Total Trihalomethanes (TTHM) — 32 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.
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 98 ZIP codes in Missouri's 3rd District.