Boone County, Iowa
8 ZIP codes · Avg score 63/100 · Grade C · Updated 2026-06-03
Monitoring figures for Boone County indicate average water quality overall — some ZIP codes among the 8 tracked have recorded health-based violations, while others operate cleanly, making individual ZIP-level data the most actionable reference point.
How Boone County Compares
How Boone County Compares
Boone County scores 4 points above the Iowa state average (59/100) and 5 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Boone County, Iowa
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.7 (asthma 9.8%, diabetes 11.2%)
Estimated additional annual cost per homeowner: $639, driven primarily by energy_code_gap
Infrastructure: 0.454% avg pipe failure probability, 75% of ZIPs at high risk
83.5% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Boone County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 3 violations. Past 5 years: 8 total (8 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $639
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
11,063 housing units in Boone 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 Boone County
Remediation costs are relatively manageable for most homeowners in Boone 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 Boone 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 Boone County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Xenia Rwd (boone) | 4,975 | 5 |
| 2 | Boone Water Works | 12,704 | 3 |
| 3 | Xenia Rwd (des Moines) | 12,860 | 3 |
| 4 | Madrid Water Department | 3,090 | 3 |
| 5 | Xenia Rwd (madrid) | 1,635 | 3 |
16 total water systems serve Boone County.
All ZIP Codes in Boone County
8 ZIP codes tracked in Boone County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 50156 | Madrid | 69 | C | 2 (1 health) | $220K |
| 2 | 50212 | Ogden | 66 | C | 0 | $207K |
| 3 | 50223 | Pilot Mound | 66 | C | 0 | $86K |
| 4 | 50037 | Boone | 65 | C | 1 (1 health) | — |
| 5 | 50099 | Boone | 65 | C | 1 (1 health) | — |
| 6 | 50152 | Luther | 65 | C | 2 (1 health) | $180K |
| 7 | 50036 | Boone | 64 | C | 1 (1 health) | $173K |
| 8 | 50040 | Boxholm | 40 | D | 0 | $73K |
Recommended Buyer Guides for Boone County
Designed to find the guide that fits the county, not the other way around — the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.
- Best Lead Paint Test Kits — 83.5% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Boone County, Iowa
Overview
Boone County in Iowa covers 8 ZIP codes with an average Home Safety Score of C (63/100).
5 of 8 ZIP codes have recorded EPA violations. 5 health-based violations have been documented.
← Back to Iowa 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.