Park County, Colorado
8 ZIP codes · Avg score 53/100 · Grade D · Updated 2026-06-03
Water systems serving Park County's 8 ZIP codes record elevated violation rates — residents in affected areas may want to verify their local system's current status.
How Park County Compares
How Park County Compares
Park County scores 7 points below the Colorado state average (60/100) and 15 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Park County, Colorado
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.6 (asthma 10.9%, diabetes 10.2%)
Estimated additional annual cost per homeowner: $591, driven primarily by wildfire
Infrastructure: 0.294% avg pipe failure probability
39.5% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Park County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 4 violations. Past 5 years: 9 total (9 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: $591
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
11,206 housing units in Park 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 Park County
Remediation costs are relatively manageable for most homeowners in Park 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 Park 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 Park County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Warm Springs Owners Mutual Water Authority | 250 | 20 |
| 2 | Bailey Water Supply District | 483 | 19 |
| 3 | Will O Wisp Metro District | 300 | 19 |
| 4 | Highland Lakes Water District | 875 | 18 |
| 5 | Eleven Mile Ranch Association | 72 | 18 |
7 total water systems serve Park County.
All ZIP Codes in Park County
8 ZIP codes tracked in Park County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 80421 | Bailey | 69 | C | 19 (1 health) | $552K |
| 2 | 80440 | Fairplay | 64 | C | 16 (2 health) | $449K |
| 3 | 80827 | Lake George | 64 | C | 18 (2 health) | $448K |
| 4 | 80420 | Alma | 63 | C | 4 | $573K |
| 5 | 80432 | Como | 40 | D | 0 | $341K |
| 6 | 80448 | Grant | 40 | D | 0 | — |
| 7 | 80456 | Jefferson | 40 | D | 0 | $493K |
| 8 | 80475 | Shawnee | 40 | D | 0 | — |
Recommended Buyer Guides for Park County
Eight risk categories drive the selection — PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback — and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- 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 Park County, Colorado
Overview
Park County in Colorado covers 8 ZIP codes with an average Home Safety Score of D (53/100).
4 of 8 ZIP codes have recorded EPA violations. 5 health-based violations have been documented.
← Back to Colorado 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.
What You Can Do
Park County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
39.5% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.