Spink County, South Dakota
12 ZIP codes · Avg score 54/100 · Grade D · Updated 2026-06-04
Spink County ranks below average for water safety, with health-based violations recorded across multiple of its 12 ZIP codes.
How Spink County Compares
How Spink County Compares
Spink County scores 6 points below the South Dakota state average (60/100) and 14 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Spink 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: 13.9 (asthma 9.9%, diabetes 12.7%)
Estimated additional annual cost per homeowner: $860, driven primarily by water_lead
Infrastructure: 0.423% avg pipe failure probability, 67% of ZIPs at high risk
71.8% 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: $860
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
3,035 housing units in Spink 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 Spink County
Remediation costs are relatively manageable for most homeowners in Spink 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 Spink 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 Spink County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Web Water Development Association | 20,750 | 2 |
| 2 | Spink Colony | 108 | 2 |
| 3 | Glendale Colony | 95 | 2 |
| 4 | Camrose Colony | 80 | 2 |
| 5 | Clark Rural Water System | 2,325 | 0 |
13 total water systems serve Spink County.
All ZIP Codes in Spink County
12 ZIP codes tracked in Spink County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 57465 | Northville | 70 | B | 0 | $124K |
| 2 | 57440 | Frankfort | 69 | C | 2 | $104K |
| 3 | 57429 | Brentford | 66 | C | 0 | $113K |
| 4 | 57469 | Redfield | 63 | C | 0 | $153K |
| 5 | 57436 | Doland | 53 | D | 0 | $67K |
| 6 | 57461 | Mellette | 53 | D | 0 | $161K |
| 7 | 57476 | Tulare | 53 | D | 0 | $124K |
| 8 | 57477 | Turton | 53 | D | 0 | $51K |
| 9 | 57424 | Ashton | 45 | D | 0 | $57K |
| 10 | 57258 | Raymond | 40 | D | 0 | $80K |
| 11 | 57460 | Mansfield | 40 | D | 0 | $272K |
| 12 | 57470 | Rockham | 40 | D | 0 | $168K |
Recommended Buyer Guides for Spink County
Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance — guides surface only when county data warrants them.
- Best Lead Paint Test Kits — 71.8% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Spink County, South Dakota
Overview
Spink County in South Dakota covers 12 ZIP codes with an average Home Safety Score of D (54/100).
1 of 12 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.
What You Can Do
Spink 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
71.8% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.