Gunnison County, Colorado
12 ZIP codes · Avg score 56/100 · Grade C · Updated 2026-07-19
ZipCheckup grade for Gunnison: C.
A mixed picture - some signals here are worth your attention.
Covering 12 ZIP codes, Gunnison County falls in the average tier for tap water safety - violations appear in a meaningful share of areas, and the data suggests quality depends heavily on which specific part of the county a household sits in.
How Gunnison County Compares
How Gunnison County Compares
Gunnison County scores 4 points below the Colorado state average (60/100) and 12 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
ZIP Code Risk Map
Water Quality Map: Gunnison County, Colorado
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 9.4 (asthma 10.8%, diabetes 7.1%)
Estimated additional annual cost per homeowner: $682, driven primarily by flood
Infrastructure: 0.353% avg pipe failure probability, 25% of ZIPs at high risk
45% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Gunnison County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 4 violations. Past 5 years: 14 total (14 health-based). Health-based violations are declining versus the prior 2-year window.
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: $682
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
11,890 housing units in Gunnison 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 Gunnison County
Remediation costs are relatively manageable for most homeowners in Gunnison 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 Gunnison County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Gunnison County
8 community water systems serving Gunnison County.
- C
- C
- C
- C
- C
- C
Show all 8 water systems
- C
- C
14 total water systems serve Gunnison County.
Systems with the most violations in Gunnison County
5 water systems with recorded EPA violations.
- C
- C
- D
- C
- C
All ZIP Codes in Gunnison County
12 ZIP codes tracked in Gunnison County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 81210 | Almont | 69 | C | 9 (1 health) | $629K |
| 2 | 81434 | Somerset | 67 | C | 14 (3 health) | $638K |
| 3 | 81220 | Cimarron | 62 | C | 5 (3 health) | $637K |
| 4 | 81224 | Crested Butte | 61 | C | 5 | $862K |
| 5 | 81231 | Gunnison | 60 | C | 10 | — |
| 6 | 81247 | Gunnison | 60 | C | 10 | — |
| 7 | 81230 | Gunnison | 59 | C | 10 | $495K |
| 8 | 81225 | Crested Butte | 55 | C | 5 | $595K |
| 9 | 81239 | Parlin | 53 | D | 0 | — |
| 10 | 81237 | Ohio City | 40 | D | 0 | $481K |
| 11 | 81241 | Pitkin | 40 | D | 0 | $419K |
| 12 | 81243 | Powderhorn | 40 | D | 0 | $454K |
Recommended Buyer Guides for Gunnison County
Independent picks. EPA-grounded. Matched here.
- 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 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 Gunnison County, Colorado
Overview
Gunnison County in Colorado covers 12 ZIP codes with an average Home Safety Score of C (56/100).
8 of 12 ZIP codes have recorded EPA violations. 7 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.