Clinton County, Missouri
5 ZIP codes · Avg score 63/100 · Grade C · Updated 2026-06-03
Covering 5 ZIP codes, Clinton County falls in the average tier for tap water safety — violations appear in a meaningful share of areas, and the data suggests quality depends heavily on which specific part of the county a household sits in.
How Clinton County Compares
How Clinton County Compares
Clinton County scores 6 points below the Missouri state average (69/100) and 5 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Clinton County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.4 (asthma 10.4%, diabetes 12%)
Estimated additional annual cost per homeowner: $420, driven primarily by water_lead
Infrastructure: 0.326% avg pipe failure probability
54% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $420
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
5,415 housing units in Clinton County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Clinton County
Remediation costs are relatively manageable for most homeowners in Clinton County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Clinton County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Clinton County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | DEKALB COUNTY PWSD 1 | 7,635 | 6 |
| 2 | Clinton Company Pwsd 4 Sys 1 | 4,968 | 6 |
| 3 | Clinton County Pwsd 4 Sys 2 | 750 | 6 |
| 4 | Clinton County Pwsd 3 | 3,615 | 6 |
| 5 | Plattsburg Public Water System | 2,354 | 6 |
15 total water systems serve Clinton County.
All ZIP Codes in Clinton County
5 ZIP codes tracked in Clinton County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 64454 | Gower | 70 | B | 0 | $238K |
| 2 | 64492 | Trimble | 70 | B | 0 | $206K |
| 3 | 64477 | Plattsburg | 68 | C | 2 | $221K |
| 4 | 64465 | Lathrop | 65 | C | 4 | $181K |
| 5 | 64493 | Turney | 40 | D | 0 | $213K |
Recommended Buyer Guides for Clinton County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Lead Paint Test Kits — 54% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Clinton County, Missouri
Overview
Clinton County in Missouri covers 5 ZIP codes with an average Home Safety Score of C (63/100).
2 of 5 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Missouri water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.