Platte County, Wyoming
6 ZIP codes · Avg score 73/100 · Grade B · Updated 2026-06-03
Water systems in Platte County serve 6 ZIP codes with few reported safety events.
How Platte County Compares
How Platte County Compares
Platte County scores 18 points above the Wyoming state average (55/100) and 5 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Platte County, Wyoming
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.4 (asthma 10.2%, diabetes 13.3%)
Estimated additional annual cost per homeowner: $675, driven primarily by wildfire
Infrastructure: 0.403% avg pipe failure probability, 50% of ZIPs at high risk
64.8% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Platte County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 1 violation. Past 5 years: 3 total (3 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $675
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
4,963 housing units in Platte 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 Platte County
Remediation costs are relatively manageable for most homeowners in Platte 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 Platte 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 Platte County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Wheatland, Town of | 3,659 | 7 |
| 2 | Y-o Investments, Inc. | 173 | 7 |
| 3 | Glendo, Town of | 289 | 5 |
| 4 | Chugwater, Town of | 200 | 3 |
| 5 | Guernsey, Town of | 1,157 | 3 |
6 total water systems serve Platte County.
All ZIP Codes in Platte County
6 ZIP codes tracked in Platte County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 82214 | Guernsey | 80 | B | 3 | $216K |
| 2 | 82213 | Glendo | 79 | B | 5 | $245K |
| 3 | 82201 | Wheatland | 78 | B | 7 (2 health) | $250K |
| 4 | 82215 | Hartville | 73 | B | 0 | — |
| 5 | 82210 | Chugwater | 72 | B | 3 (1 health) | $217K |
| 6 | 82219 | Jay Em | 53 | D | 0 | $342K |
Recommended Buyer Guides for Platte County
Independent picks. EPA-grounded. Matched here.
- Best Lead Paint Test Kits — 64.8% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Platte County, Wyoming
Overview
Platte County in Wyoming covers 6 ZIP codes with an average Home Safety Score of B (73/100).
4 of 6 ZIP codes have recorded EPA violations. 3 health-based violations have been documented.
← 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.