San Juan County, Colorado
1 ZIP code · Avg score 80/100 · Grade B · Updated 2026-07-19
ZipCheckup grade for San Juan: B.
This ZIP looks solid, with a few items worth a quick check.
San Juan County - 1 ZIP code, above-average safety grade.
How San Juan County Compares
How San Juan County Compares
San Juan County scores 20 points above the Colorado state average (60/100) and 12 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
Key Risk Factors
Health risk index: 11.7 (asthma 10.4%, diabetes 10.2%)
Estimated additional annual cost per homeowner: $1,040, driven primarily by energy_code_gap
Infrastructure: 0.45% avg pipe failure probability, 100% of ZIPs at high risk
77% 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: $1,040
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
551 housing units in San Juan 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 San Juan County
Remediation costs are relatively manageable for most homeowners in San Juan 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 San Juan County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving San Juan County
1 community water system serving San Juan County.
- B
Systems with the most violations in San Juan County
1 water system with recorded EPA violations.
- B
All ZIP Codes in San Juan County
1 ZIP code tracked in San Juan County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 81433 | Silverton | 80 | B | 3 | $403K |
Recommended Buyer Guides for San Juan County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Lead Paint Test Kits — 77% of homes built before 1978
Overview
San Juan County in Colorado covers 1 ZIP code with an average Home Safety Score of B (80/100).
1 of 1 ZIP code have recorded EPA violations. All violations are monitoring/reporting type.
← 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.