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2026 Rankings
Pennington County, South Dakota Home Safety Rankings - 23 ZIPs
Explore rankings under Home Safety Score model 4.0.0. Only ZIPs with all four required inputs are ranked; missing evidence is not imputed or reweighted.
Pennington County, South Dakota (South Dakota) includes 23 tracked ZIP codes and 21 mapped community water systems; confirm service for a specific address. Below are the water quality rankings for metro ZIPs with all required inputs.
Average Home Safety Grade: B (78/100)
| Grade | ZIP Codes | % |
|---|---|---|
| A | 0 | 0% |
| B | 7 | 78% |
| C | 2 | 22% |
| D | 0 | 0% |
| F | 0 | 0% |
Top 10 ZIP Codes by Home Safety Score
| Rank | ZIP | City | Score | Grade |
|---|---|---|---|---|
| 1 | 57701 | Rapid City | 83 | B |
| 2 | 57702 | Rapid City | 83 | B |
| 3 | 57718 | Black Hawk | 83 | B |
| 4 | 57769 | Piedmont | 83 | B |
| 5 | 57790 | Wall | 83 | B |
| 6 | 57706 | Ellsworth Afb | 79 | B |
| 7 | 57719 | Box Elder | 78 | B |
| 8 | 57751 | Keystone | 67 | C |
| 9 | 57703 | Rapid City | 62 | C |
10 Riskiest ZIP Codes
| Rank | ZIP | City | Score | Grade | Risk Factor |
|---|---|---|---|---|---|
| 1 | 57703 | Rapid City | 62 | C | 10 violations |
| 2 | 57751 | Keystone | 67 | C | — |
| 3 | 57719 | Box Elder | 78 | B | 12 violations |
| 4 | 57706 | Ellsworth Afb | 79 | B | 9 violations |
| 5 | 57790 | Wall | 83 | B | — |
| 6 | 57769 | Piedmont | 83 | B | 2 violation(s) |
| 7 | 57718 | Black Hawk | 83 | B | 2 violation(s) |
| 8 | 57702 | Rapid City | 83 | B | 2 violation(s) |
| 9 | 57701 | Rapid City | 83 | B | 2 violation(s) |
Most Common Contaminant Violations
| Contaminant | Violations | ZIPs Affected |
|---|---|---|
| Gross Alpha | 15 | 3 |
| Gross Beta | 12 | 3 |
| Revised Total Coliform Rule | 8 | 7 |
| Consumer Confidence Report Rule | 6 | 6 |
| Surface Water Treatment Rule | 3 | 1 |
| Lead and Copper Rule | 1 | 1 |
| Groundwater Rule | 1 | 1 |
Lead Risk
- Average of reported 90th-percentile lead results: 0.0038 mg/L (below EPA action level)
- 0 of 15 ZIP codes with known status exceed EPA lead action level
- 9% of housing built before 1950
- 26% of housing built before 1970
Cities in This Metro
- Rapid City, SD — 4 ZIP codes
- Spearfish, SD — 2 ZIP codes
- Ellsworth Afb, SD — 1 ZIP code
- Black Hawk, SD — 1 ZIP code
- Box Elder, SD — 1 ZIP code
- Caputa, SD — 1 ZIP code
- Enning, SD — 1 ZIP code
- Hill City, SD — 1 ZIP code
- Interior, SD — 1 ZIP code
- Keystone, SD — 1 ZIP code
- Nemo, SD — 1 ZIP code
- New Underwood, SD — 1 ZIP code
- Owanka, SD — 1 ZIP code
- Piedmont, SD — 1 ZIP code
- Quinn, SD — 1 ZIP code
- Scenic, SD — 1 ZIP code
- Wall, SD — 1 ZIP code
- Wasta, SD — 1 ZIP code
- White Owl, SD — 1 ZIP code
All 23 ZIP Codes Ranked
View complete ranking
| Rank | ZIP | City | Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 57701 | Rapid City | 83 | B | 2 |
| 2 | 57702 | Rapid City | 83 | B | 2 |
| 3 | 57718 | Black Hawk | 83 | B | 2 |
| 4 | 57769 | Piedmont | 83 | B | 2 |
| 5 | 57790 | Wall | 83 | B | 0 |
| 6 | 57706 | Ellsworth Afb | 79 | B | 9 |
| 7 | 57719 | Box Elder | 78 | B | 12 |
| 8 | 57751 | Keystone | 67 | C | 0 |
| 9 | 57703 | Rapid City | 62 | C | 10 |
| 10 | 57725 | Caputa | — | — | 0 |
| 11 | 57737 | Enning | — | — | — |
| 12 | 57745 | Hill City | — | — | 0 |
| 13 | 57750 | Interior | — | — | — |
| 14 | 57759 | Nemo | — | — | — |
| 15 | 57761 | New Underwood | — | — | 0 |
| 16 | 57767 | Owanka | — | — | — |
| 17 | 57775 | Quinn | — | — | 0 |
| 18 | 57780 | Scenic | — | — | 0 |
| 19 | 57783 | Spearfish | — | — | 7 |
| 20 | 57791 | Wasta | — | — | — |
| 21 | 57792 | White Owl | — | — | — |
| 22 | 57799 | Spearfish | — | — | — |
Data Sources
- Water quality: EPA SDWIS
- Housing: U.S. Census Bureau American Community Survey
- Flood: FEMA NFIP
- Flood scope: historical NFIP claim records and claim-rated-zone evidence; this is not current property-map coverage.
Reporting periods vary by source; the page metadata identifies this materialization.
Methodology
Model 4.0.0 averages SDWIS water compliance and UCMR5 PFAS within drinking water, then averages drinking water, county radon, and annual AQI as three equal domains. All four inputs are required. Score methodology → · Rankings methodology →
Model 4.0.0 averages SDWIS water compliance and UCMR5 PFAS within drinking water, then averages drinking water, county radon, and annual AQI as three equal domains. All four inputs are required. Score methodology → · Rankings methodology →
Disclaimer: Scores are based on EPA SDWIS reported data and are not a guarantee of current water safety. Water quality can change. For the most current information, contact your local water utility or request a Consumer Confidence Report.
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How to cite this page
APA
ZipCheckup. (2026). Pennington County, South Dakota Home Safety Rankings - 23 ZIPs. https://zipcheckup.com/rankings/metro/pennington-south-dakota/
BibTeX
@misc{zipcheckup-rankings-metro-pennington-south-dakota,
author = {{ZipCheckup}},
title = {{Pennington County, South Dakota Home Safety Rankings - 23 ZIPs}},
year = {2026},
url = {https://zipcheckup.com/rankings/metro/pennington-south-dakota/}
}
Page version: October 2026.
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