COUNTY REPORT CO

San Miguel County, Colorado

5 ZIP codes · Avg score 33/100 · Grade F

ZipCheckup grade for San Miguel County: F.

Lowest grade in federal records; check your home directly.

Your top priority: see the breakdown below and consider a certified water filter. NSF certified filters →

Because the grade blends several data sources, a D or F for San Miguel County does not show which factor drove it; the reports for its 5 ZIP codes show the underlying data.

How San Miguel County Compares

San Miguel County33/100
Colorado avg59/100
National avg73/100

How San Miguel County Compares

F
County Grade
33/100
Avg Safety Score
5
ZIP Codes
3
Water Systems

San Miguel County scores 26 points below the Colorado state average (59/100) and 40 points below the national average (73/100).

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

F
County Grade
33
Avg Safety Score
5
ZIP Codes
Best ZIP: 81435 (33/100)
Lowest ZIP: 81435 (33/100)
$706K
Median Home Value
$1,100
Avg Remediation (0.16% of home value)

ZIP Code Risk Map

Water Quality Map: San Miguel County, Colorado

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 10.6 (asthma 10.5%, diabetes 8.7%)

Modeled additional annual cost estimate per homeowner: $514, largest modeled factor: Flood

24% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.5% (national: 8.9%)
Diabetes 8.7% (national: 10.5%)
Obesity 26.3% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1996
Median Build Year
24%
Pre-1980 Housing
37/100
Infrastructure Stress Indicator
20%
ZIPs with High Infrastructure Stress
Moderate
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $514

Flood $400/yr
Energy Code Gap $324/yr
Water / Lead $38/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

6,637 housing units in San Miguel County

Pre-1940 6%
1940–1959 1%
1960–1979 17%
1980–1999 46%
2000+ 30%

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 Miguel County

$706K
Median Home Value
$1,100
Est. Remediation Cost
0.2%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in San Miguel County can be compared with the median property value; actual costs vary by property.

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 Miguel County residents

Asthma 10.5% (US avg: 8.9%)
Diabetes 8.7% (US avg: 11%)
Obesity 26.3% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems mapped to San Miguel County ZIP codes

3 community water systems mapped to San Miguel County ZIP codes; EPA may list more systems serving the county.

Systems with the most violations in San Miguel County

3 water systems with violations in EPA records.

All ZIP Codes in San Miguel County

5 ZIP codes tracked in San Miguel County.

# ZIP Code City Safety Score Grade Violations Home Value
1 81435 Telluride 33 F 172 (10 health) $706K
2 81325 Egnar — — 10 $457K
3 81423 Norwood — — 10 $412K
4 81426 Ophir — — 134 $875K
5 81430 Placerville — — $1004K

Recommended Buyer Guides for San Miguel County

Which guides appear depends on what the county data show.

Overview

San Miguel County in Colorado covers 5 tracked ZIP records with an average Home Safety Score of F (33/100) across 1 scored records.

4 of 4 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 10 health-based violations appear in the available health breakdown.

← Back to Colorado Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

What You Can Do

San Miguel County has an average Home Safety grade of F across its scored ZIP records. Here are steps to protect your household.

1

Test your tap water

Ask a certified laboratory which tests it offers for lead, bacteria, and other contaminants relevant to your home; a $20-$50 kit may cover only certain contaminants.

2

Consider a certified water filter

NSF/ANSI-certified filters reduce the specific contaminants listed on their certification. Match the filter to your test results for best protection. Try our filter matcher

3

Contact your water utility

Request the latest Consumer Confidence Report (CCR) from your water provider. It reports monitored contaminants detected in the utility's water and related compliance information.

Frequently Asked Questions

Is water safe in San Miguel County?
San Miguel County receives a grade of F. 1 of 5 ZIP codes are mapped to water systems with reported health-based violations. Independent water testing is recommended.
How many water systems serve San Miguel County?
We map 3 public water systems to 5 ZIP codes in our data for San Miguel County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in San Miguel County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in San Miguel County is flood. Across all modeled risk factors, the estimated average additional annual cost is $514 per homeowner; actual costs vary by home.
How old are homes in San Miguel County?
The median home build year in San Miguel County is 1996. 24% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does San Miguel County compare to Colorado?
San Miguel County has an average Home Safety Score of 33/100 under model 4.0.0, which is below the Colorado state average of 59/100.

How to cite this page

APA ZipCheckup. (2026). San Miguel County, CO: HSS 33/100; PFAS Found in Water. https://zipcheckup.com/county/colorado/san-miguel/
BibTeX
@misc{zipcheckup-county-colorado-san-miguel,
  author = {{ZipCheckup}},
  title  = {{San Miguel County, CO: HSS 33/100; PFAS Found in Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/colorado/san-miguel/}
}

Page version: October 2026.

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