Grundy County, Missouri
4 ZIP codes · Avg score 83/100 · Grade B · Updated 2026-06-03
Grundy County — 4 ZIP codes, above-average safety grade.
How Grundy County Compares
How Grundy County Compares
Grundy County scores 14 points above the Missouri state average (69/100) and 15 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 15.9 (asthma 10.8%, diabetes 14.3%)
Estimated additional annual cost per homeowner: $883, driven primarily by water_lead
Infrastructure: 0.445% avg pipe failure probability, 75% of ZIPs at high risk
74.8% 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: $883
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
4,822 housing units in Grundy 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 Grundy County
Remediation costs are relatively manageable for most homeowners in Grundy 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 Grundy 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 Grundy County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Grundy County Pwsd 1 | 3,900 | 4 |
| 2 | Linn Livingston County Pwsd 3 | 1,350 | 4 |
| 3 | Mercer County Pwsd 1 | 3,200 | 2 |
| 4 | Spickard Public Water System | 254 | 2 |
| 5 | Sullivan County Pwsd 1 | 4,412 | 1 |
11 total water systems serve Grundy County.
All ZIP Codes in Grundy County
4 ZIP codes tracked in Grundy County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 64641 | Galt | 83 | B | 1 | $122K |
| 2 | 64652 | Laredo | 83 | B | 0 | $166K |
| 3 | 64683 | Trenton | 83 | B | 1 | $107K |
| 4 | 64679 | Spickard | 82 | B | 2 | $108K |
Recommended Buyer Guides for Grundy County
Independent picks. EPA-grounded. Matched here.
- Best Lead Paint Test Kits — 74.8% of homes built before 1978
Overview
Grundy County in Missouri covers 4 ZIP codes with an average Home Safety Score of B (83/100).
3 of 4 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.