Deuel County, South Dakota
5 ZIP codes · Avg score 48/100 · Grade D · Updated 2026-06-03
Deuel County ranks below average for water safety, with health-based violations recorded across multiple of its 5 ZIP codes.
How Deuel County Compares
How Deuel County Compares
Deuel County scores 12 points below the South Dakota state average (60/100) and 20 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Deuel 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: 13.2 (asthma 9.9%, diabetes 11.9%)
Estimated additional annual cost per homeowner: $678, driven primarily by water_lead
Infrastructure: 0.422% avg pipe failure probability, 60% of ZIPs at high risk
71.2% 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: $678
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
1,867 housing units in Deuel 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 Deuel County
Remediation costs are relatively manageable for most homeowners in Deuel 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 Deuel 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 Deuel County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | BROOKINGS-DEUEL RURAL WATER SYSTEM | 6,200 | 1 |
| 2 | Gary | 240 | 1 |
| 3 | CLEAR LAKE | 1,218 | 0 |
| 4 | Sioux Rural Water System | 4,012 | 0 |
| 5 | Clark Rural Water System | 2,325 | 0 |
All ZIP Codes in Deuel County
5 ZIP codes tracked in Deuel County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 57237 | Gary | 65 | C | 1 (1 health) | $154K |
| 2 | 57226 | Clear Lake | 56 | C | 0 | $176K |
| 3 | 57218 | Brandt | 40 | D | 0 | $210K |
| 4 | 57238 | Goodwin | 40 | D | 0 | $215K |
| 5 | 57268 | Toronto | 40 | D | 0 | $181K |
Recommended Buyer Guides for Deuel County
Below: editorial picks, no sponsored placements.
- Best Lead Paint Test Kits — 71.2% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Deuel County, South Dakota
Overview
Deuel County in South Dakota covers 5 ZIP codes with an average Home Safety Score of D (48/100).
1 of 5 ZIP codes have recorded EPA violations. 1 health-based violation 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.
What You Can Do
Deuel County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
71.2% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.