Faulk County, South Dakota
4 ZIP codes · Avg score 60/100 · Grade C · Updated 2026-06-04
Unlike top-rated counties, Faulk County's 4 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 Faulk County Compares
How Faulk County Compares
Faulk 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
Key Risk Factors
Health risk index: 14.6 (asthma 10.2%, diabetes 13.8%)
Estimated additional annual cost per homeowner: $613, driven primarily by water_lead
Infrastructure: 0.43% avg pipe failure probability, 75% of ZIPs at high risk
78% 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: $613
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
940 housing units in Faulk 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 Faulk County
Remediation costs are relatively manageable for most homeowners in Faulk 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 Faulk 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 Faulk County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Web Water Development Association | 20,750 | 2 |
| 2 | Mid-dakota Rural Water | 11,833 | 2 |
| 3 | Faulkton | 693 | 2 |
| 4 | Brentwood Colony | 137 | 2 |
| 5 | Blumengard Colony | 133 | 2 |
8 total water systems serve Faulk County.
All ZIP Codes in Faulk County
4 ZIP codes tracked in Faulk County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 57438 | Faulkton | 69 | C | 2 | $116K |
| 2 | 57435 | Cresbard | 66 | C | 0 | $210K |
| 3 | 57473 | Seneca | 66 | C | 0 | $158K |
| 4 | 57467 | Orient | 40 | D | 0 | — |
Recommended Buyer Guides for Faulk County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Lead Paint Test Kits — 78% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Overview
Faulk County in South Dakota covers 4 ZIP codes with an average Home Safety Score of C (60/100).
1 of 4 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← 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.