Pennington County, South Dakota
13 ZIP codes · Avg score 76/100 · Grade B
ZipCheckup grade for Pennington County: B.
This ZIP has a few items worth a quick check.
Pennington County: A or B, 13 ZIP codes tracked.
How Pennington County Compares
How Pennington County Compares
Pennington County scores 7 points above the South Dakota state average (69/100) and 3 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Pennington 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 (asthma 10.2%, diabetes 12.1%)
Modeled additional annual cost estimate per homeowner: $1,168, largest modeled factor: Flood
47% of homes built before 1980 (lead paint was banned for residential use in 1978)
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 DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,168
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
51,392 housing units in Pennington 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 Pennington County
Modeled remediation costs in Pennington County can be compared with the median property value; actual costs vary by property.
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 Pennington County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Pennington County ZIP codes
8 community water systems mapped to Pennington County ZIP codes; EPA may list more systems serving the county.
- B
- B
- B
- B
- B
- B
Show all 8 water systems
- B
- C
15 water systems mapped to Pennington County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Pennington County
3 water systems with violations in EPA records.
- B
- B
- C
All ZIP Codes in Pennington County
13 ZIP codes tracked in Pennington County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 57701 | Rapid City | 83 | B | 2 | $230K |
| 2 | 57702 | Rapid City | 83 | B | 2 | $341K |
| 3 | 57790 | Wall | 83 | B | 0 | $188K |
| 4 | 57719 | Box Elder | 78 | B | 12 (9 health) | $275K |
| 5 | 57751 | Keystone | 67 | C | 0 | $388K |
| 6 | 57703 | Rapid City | 62 | C | 10 (9 health) | $250K |
| 7 | 57709 | Rapid City | — | — | — | |
| 8 | 57725 | Caputa | — | — | 0 | $275K |
| 9 | 57745 | Hill City | — | — | 0 | $324K |
| 10 | 57761 | New Underwood | — | — | 0 | $264K |
| 11 | 57767 | Owanka | — | — | — | |
| 12 | 57775 | Quinn | — | — | 0 | $179K |
| 13 | 57780 | Scenic | — | — | 0 | — |
Recommended Buyer Guides for Pennington County
Nothing on this list means a problem exists in your own home: the matches are drawn from county- and ZIP-level records, so a guide shows up because of an area signal, and only testing at your tap describes a specific household.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Pennington County, South Dakota
Overview
Pennington County in South Dakota covers 13 tracked ZIP records with an average Home Safety Score of B (76/100) across 6 scored records.
4 of 11 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 9 health-based violations appear in the available health breakdown.
← 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.