Bon Homme County, South Dakota
6 ZIP codes · Avg score 60/100 · Grade C · Updated 2026-06-04
Recent monitoring in Bon Homme County's 6 ZIP codes shows middle-tier safety — some systems are clean; others have logged EPA violations.
How Bon Homme County Compares
How Bon Homme County Compares
Bon Homme County scores 0 points above the South Dakota state average (60/100) and 8 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Bon Homme County, South Dakota
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%, diabetes 13.2%)
Estimated additional annual cost per homeowner: $628, driven primarily by water_lead
Infrastructure: 0.428% avg pipe failure probability, 67% of ZIPs at high risk
80.3% of homes built before 1978 (lead paint era)
Violation History (2023–2024)
→ Stable trendEPA violation counts by year across Bon Homme County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 1 violation. Past 5 years: 2 total (2 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: $628
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
2,979 housing units in Bon Homme 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 Bon Homme County
Remediation costs are relatively manageable for most homeowners in Bon Homme 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 Bon Homme 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 Bon Homme County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | By Water District | 13,320 | 8 |
| 2 | RANDALL COMMUNITY WATER DISTRICT | 6,248 | 4 |
| 3 | Avon | 590 | 4 |
| 4 | Scotland | 785 | 2 |
| 5 | Maxwell Colony | 150 | 2 |
8 total water systems serve Bon Homme County.
All ZIP Codes in Bon Homme County
6 ZIP codes tracked in Bon Homme County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 57063 | Tabor | 68 | C | 1 | $152K |
| 2 | 57066 | Tyndall | 66 | C | 0 | $102K |
| 3 | 57059 | Scotland | 65 | C | 2 (1 health) | $133K |
| 4 | 57062 | Springfield | 65 | C | 1 (1 health) | $160K |
| 5 | 57315 | Avon | 58 | C | 4 | $107K |
| 6 | 57329 | Dante | 40 | D | 0 | $124K |
Recommended Buyer Guides for Bon Homme County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Lead Paint Test Kits — 80.3% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Bon Homme County, South Dakota
Overview
Bon Homme County in South Dakota covers 6 ZIP codes with an average Home Safety Score of C (60/100).
4 of 6 ZIP codes have recorded EPA violations. 2 health-based violations have been documented.
← Back to South Dakota 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.