Madison County, Nebraska
7 ZIP codes · Avg score 65/100 · Grade C · Updated 2026-06-03
Unlike top-rated counties, Madison County's 7 ZIP codes carry a fair number of documented violations — chlorine compliance and disinfection byproduct limits are the categories most often cited in recent data.
How Madison County Compares
How Madison County Compares
Madison County scores 0 points above the Nebraska state average (65/100) and 3 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Madison County, Nebraska
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.2 (asthma 9.4%, diabetes 11.8%)
Estimated additional annual cost per homeowner: $1,306, driven primarily by flood
Infrastructure: 0.407% avg pipe failure probability, 71% of ZIPs at high risk
78.8% 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: $1,306
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
16,770 housing units in Madison 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 Madison County
Remediation costs are relatively manageable for most homeowners in Madison 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 Madison 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 Madison County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Norfolk, | 26,147 | 4 |
| 2 | Stanton Company Sid 1 - Woodland Park | 1,841 | 4 |
| 3 | Country Village Mobile Home Park | 255 | 4 |
| 4 | Kpr Us Llc | 350 | 4 |
| 5 | Meadow Grove, Village of | 301 | 1 |
9 total water systems serve Madison County.
All ZIP Codes in Madison County
7 ZIP codes tracked in Madison County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 68758 | Newman Grove | 70 | B | 1 | $113K |
| 2 | 68781 | Tilden | 70 | B | 0 | $153K |
| 3 | 68752 | Meadow Grove | 68 | C | 1 | $124K |
| 4 | 68748 | Madison | 65 | C | 0 | $140K |
| 5 | 68702 | Norfolk | 62 | C | 2 | — |
| 6 | 68715 | Battle Creek | 62 | C | 0 | $197K |
| 7 | 68701 | Norfolk | 61 | C | 2 | $200K |
Recommended Buyer Guides for Madison 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 — 78.8% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Madison County, Nebraska
Overview
Madison County in Nebraska covers 7 ZIP codes with an average Home Safety Score of C (65/100).
4 of 7 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Nebraska 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.