COUNTY REPORT SD

Ziebach County, South Dakota

2 ZIP codes · Avg score 67/100 · Grade C · Updated 2026-06-04

Across Ziebach County, EPA compliance data for 2 ZIP codes sits at a moderate level — not alarming, but not uniformly clean either.

How Ziebach County Compares

Ziebach County67/100
South Dakota avg60/100
National avg68/100

How Ziebach County Compares

C
County Grade
67/100
Avg Safety Score
2
ZIP Codes
2
Water Systems

Ziebach County scores 7 points above the South Dakota state average (60/100) and 1 points below the national average (68/100).

Data: EPA SDWIS Last verified: 2026-06-04

C
County Grade
67
Avg Safety Score
2
ZIP Codes
Best ZIP: 57623 (81/100)
Lowest ZIP: 57622 (53/100)
$85K
Median Home Value
$1,000
Avg Remediation (118% of home value)

Key Risk Factors

Health risk index: 17.8 (asthma 13.8%, diabetes 18.7%)

Estimated additional annual cost per homeowner: $415, driven primarily by wildfire

Infrastructure: 0.315% avg pipe failure probability

49.5% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 13.8% (national: 8.9%)
Diabetes 18.7% (national: 10.5%)
Obesity 47.2% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1985
Median Build Year
49.5%
Pre-1978 Housing
32%
Pipe Failure Probability
0%
ZIPs at High Infra Risk
Moderate
Lead Pipe Risk

Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $415

Wildfire $150/yr
Flood $100/yr
Energy Code Gap $90/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

439 housing units in Ziebach County

Pre-1940 12%
1940–1959 5%
1960–1979 29%
1980–1999 39%
2000+ 15%

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 Ziebach County

$85K
Median Home Value
$1,000
Est. Remediation Cost
1.2%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Ziebach 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 Ziebach County residents

Asthma 13.8% (US avg: 8.9%)
Diabetes 18.7% (US avg: 11%)
Obesity 47.2% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

All ZIP Codes in Ziebach County

2 ZIP codes tracked in Ziebach County.

# ZIP Code City Safety Score Grade Violations Home Value
1 57623 Dupree 81 B 1 $85K
2 57622 Cherry Creek 53 D 0

Recommended Buyer Guides for Ziebach County

Strictly editorial — no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.

Overview

Ziebach County in South Dakota covers 2 ZIP codes with an average Home Safety Score of C (67/100).

1 of 2 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.

← Back to South Dakota water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Ziebach County?
Ziebach County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Ziebach County?
Ziebach County is served by 2 public water systems that supply drinking water to residents across 2 ZIP codes.
What is the biggest environmental risk in Ziebach County?
The primary environmental risk factor in Ziebach County is wildfire. This contributes to an estimated additional annual cost of $415 per homeowner.
How old are homes in Ziebach County?
The median home build year in Ziebach County is 1985. 49.5% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Ziebach County compare to South Dakota?
Ziebach County has an average water safety score of 67/100, which is above the South Dakota state average of 60/100.

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