Campbell County, South Dakota
4 ZIP codes · Avg score 56/100 · Grade C · Updated 2026-06-04
Tracking 4 ZIP codes in Campbell County reveals a mixed picture — tap water quality varies meaningfully by location.
How Campbell County Compares
How Campbell County Compares
Campbell County scores 4 points below the South Dakota state average (60/100) and 12 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
Key Risk Factors
Health risk index: 15.3 (asthma 10.4%, diabetes 15.3%)
Estimated additional annual cost per homeowner: $613, driven primarily by water_lead
Infrastructure: 0.42% avg pipe failure probability, 75% of ZIPs at high risk
75.5% 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
1,522 housing units in Campbell 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 Campbell County
Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.
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 Campbell County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 3 systems in Campbell County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Web Water Development Association | 20,750 | 3 |
| 2 | Herreid | 416 | 2 |
| 3 | POLLOCK | 229 | 1 |
All ZIP Codes in Campbell County
4 ZIP codes tracked in Campbell County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 57648 | Pollock | 66 | C | 1 | $97K |
| 2 | 57632 | Herreid | 65 | C | 2 (1 health) | $83K |
| 3 | 57646 | Mound City | 53 | D | 0 | $101K |
| 4 | 57642 | Mc Laughlin | 40 | D | 0 | $79K |
Recommended Buyer Guides for Campbell County
Four sources — EPA, NSF, FEMA, CDC — drive the match.
- Best Lead Paint Test Kits — 75.5% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Overview
Campbell County in South Dakota covers 4 ZIP codes with an average Home Safety Score of C (56/100).
2 of 4 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.