Day County, South Dakota
7 ZIP codes · Home Safety Score unavailable · 0 of 7 tracked ZIP records scored · Updated
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Day 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: 15 (asthma 10.4%, diabetes 14.7%)
Estimated additional annual cost per homeowner: $1,333, driven primarily by flood
78.9% 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,333
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
3,386 housing units in Day 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 Day County
Remediation costs are relatively manageable for most homeowners in Day 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 Day County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Day County
4 community water systems serving Day County.
All ZIP Codes in Day County
7 ZIP codes tracked in Day County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 57219 | Bristol | — | — | 0 | $83K |
| 2 | 57239 | Grenville | — | — | 0 | $291K |
| 3 | 57261 | Roslyn | — | — | 0 | $114K |
| 4 | 57273 | Waubay | — | — | 0 | $156K |
| 5 | 57274 | Webster | — | — | 0 | $162K |
| 6 | 57422 | Andover | — | — | 0 | $95K |
| 7 | 57468 | Pierpont | — | — | 0 | $104K |
Recommended Buyer Guides for Day County
Filtered against federal data, fitted to local risks.
- Best Lead Paint Test Kits — 78.9% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Overview
Day County in South Dakota covers 7 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.
The available EPA record reports 0 violations for 7 ZIP codes with a reported violation count.
← Back to South Dakota Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.