Campbell County, Wyoming
6 ZIP codes · Avg score 62/100 · Grade C · Updated 2026-06-03
Campbell County's water quality grade reflects a middle-ground assessment — its 6 ZIP codes range from fully compliant to violation-flagged.
How Campbell County Compares
How Campbell County Compares
Campbell County scores 7 points above the Wyoming state average (55/100) and 6 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Campbell County, Wyoming
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.1 (asthma 10.3%, diabetes 9.9%)
Estimated additional annual cost per homeowner: $730, driven primarily by wildfire
Infrastructure: 0.305% avg pipe failure probability, 17% of ZIPs at high risk
51.2% 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: $730
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
19,833 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
Remediation costs are relatively manageable for most homeowners in Campbell 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 Campbell County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Campbell County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Gillette, | 32,222 | 22 |
| 2 | Sleepy Hollow Subdivision | 2,400 | 22 |
| 3 | Antelope Valley I&s District (avisd) | 1,280 | 22 |
| 4 | Fox Park Subdivision | 843 | 18 |
| 5 | Heritage Village Subdivision | 750 | 18 |
7 total water systems serve Campbell County.
All ZIP Codes in Campbell County
6 ZIP codes tracked in Campbell County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 82732 | Wright | 70 | B | 1 | $226K |
| 2 | 82727 | Rozet | 68 | C | 4 | $346K |
| 3 | 82717 | Gillette | 66 | C | 6 | — |
| 4 | 82718 | Gillette | 66 | C | 6 | $290K |
| 5 | 82716 | Gillette | 61 | C | 6 | $235K |
| 6 | 82731 | Weston | 40 | D | 0 | — |
Recommended Buyer Guides for Campbell County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Lead Paint Test Kits — 51.2% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Campbell County, Wyoming
Overview
Campbell County in Wyoming covers 6 ZIP codes with an average Home Safety Score of C (62/100).
5 of 6 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Wyoming 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.