Phillips County, Colorado
4 ZIP codes · Avg score 54/100 · Grade D · Updated 2026-06-03
Across Phillips County's 4 ZIP codes, EPA data shows a below-average compliance pattern — health-based violations are documented in several areas, and independent testing is a reasonable step for concerned households.
How Phillips County Compares
How Phillips County Compares
Phillips County scores 6 points below the Colorado state average (60/100) and 14 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 13.1 (asthma 11.2%, diabetes 11.9%)
Estimated additional annual cost per homeowner: $785, driven primarily by energy_code_gap
Infrastructure: 0.422% avg pipe failure probability, 75% of ZIPs at high risk
59% of homes built before 1978 (lead paint era)
Violation History (2022–2024)
→ Stable trendEPA violation counts by year across Phillips County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 1 violation. Past 5 years: 2 total (2 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: $785
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
2,176 housing units in Phillips 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 Phillips County
Remediation costs are relatively manageable for most homeowners in Phillips 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 Phillips County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 4 systems in Phillips County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | HOLYOKE CITY OF | 2,540 | 5 |
| 2 | Seaboard Foods Llc | 132 | 5 |
| 3 | Paoli Town of | 42 | 4 |
| 4 | Haxtun Town of | 963 | 2 |
All ZIP Codes in Phillips County
4 ZIP codes tracked in Phillips County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 80734 | Holyoke | 68 | C | 5 | $264K |
| 2 | 80731 | Haxtun | 64 | C | 2 | $231K |
| 3 | 80721 | Amherst | 53 | D | 0 | $337K |
| 4 | 80746 | Paoli | 31 | F | 4 (2 health) | $183K |
Recommended Buyer Guides for Phillips County
Editorial-only picks, screened against the EPA detections on file.
- Best Water Filters for Lead — Lead above EPA action level in 1 ZIP code
- Best Lead Paint Test Kits — 59% of homes built before 1978
- 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
Overview
Phillips County in Colorado covers 4 ZIP codes with an average Home Safety Score of D (54/100).
3 of 4 ZIP codes have recorded EPA violations. 2 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
Phillips 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
59% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.