COUNTY REPORT NV

Lyon County, Nevada

6 ZIP codes · Avg score 59/100 · Grade C

ZipCheckup grade for Lyon County: C.

A mixed picture - some signals here are worth your attention.

Composite scoring places Lyon County at a C (6 ZIP codes tracked).

How Lyon County Compares

Lyon County59/100
Nevada avg84/100
National avg73/100

How Lyon County Compares

C
County Grade
59/100
Avg Safety Score
6
ZIP Codes
5
Water Systems

Lyon County scores 25 points below the Nevada state average (84/100) and 14 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

C
County Grade
59
Avg Safety Score
6
ZIP Codes
Best ZIP: 89403 (67/100)
Lowest ZIP: 89408 (49/100)
$353K
Median Home Value
$467
Avg Remediation (0.13% of home value)

ZIP Code Risk Map

Water Quality Map: Lyon County, Nevada

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: 13.9 (asthma 10.8%, diabetes 12.3%)

Modeled additional annual cost estimate per homeowner: $1,055, largest modeled factor: Energy Code Gap

25% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.8% (national: 8.9%)
Diabetes 12.3% (national: 10.5%)
Obesity 35.2% (national: 32.4%)

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

Infrastructure Overview

1981
Median Build Year
25%
Pre-1980 Housing
38/100
Infrastructure Stress Indicator
33%
ZIPs with High Infrastructure Stress
Low
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: $1,055

Energy Code Gap $405/yr
Flood $360/yr
Wildfire $300/yr

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

Housing Age Distribution

23,311 housing units in Lyon County

Pre-1940 2%
1940–1959 5%
1960–1979 18%
1980–1999 35%
2000+ 40%

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 Lyon County

$353K
Median Home Value
$467
Est. Remediation Cost
0.1%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Lyon 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 Lyon County residents

Asthma 10.8% (US avg: 8.9%)
Diabetes 12.3% (US avg: 11%)
Obesity 35.2% (US avg: 32.4%)

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

Water systems mapped to Lyon County ZIP codes

5 community water systems mapped to Lyon County ZIP codes; EPA may list more systems serving the county.

Systems with the most violations in Lyon County

3 water systems with violations in EPA records.

All ZIP Codes in Lyon County

6 ZIP codes tracked in Lyon County.

# ZIP Code City Safety Score Grade Violations Home Value
1 89403 Dayton 67 C 0 $392K
2 89447 Yerington 62 C 15 (1 health) $244K
3 89408 Fernley 49 D 2 (1 health) $353K
4 89428 Silver City — — 0 $354K
5 89429 Silver Springs — — 33 (2 health) $265K
6 89430 Smith — — $671K

Recommended Buyer Guides for Lyon County

Read the note next to each link: it gives the reason, such as a radon zone designation or housing age, that led to the recommendation.

Overview

Lyon County in Nevada covers 6 tracked ZIP records with an average Home Safety Score of C (59/100) across 3 scored records.

3 of 5 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 4 health-based violations appear in the available health breakdown.

← Back to Nevada Home Safety Profile

Data Sources

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

Frequently Asked Questions

Is water safe in Lyon County?
Lyon County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Lyon County?
We map 5 public water systems to 6 ZIP codes in our data for Lyon County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Lyon County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Lyon County is energy code gap. Across all modeled risk factors, the estimated average additional annual cost is $1,055 per homeowner; actual costs vary by home.
How old are homes in Lyon County?
The median home build year in Lyon County is 1981. 25% 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 Lyon County compare to Nevada?
Lyon County has an average Home Safety Score of 59/100 under model 4.0.0, which is below the Nevada state average of 84/100.

How to cite this page

APA ZipCheckup. (2026). Lyon County, NV: HSS 59/100; PFAS Found in Water. https://zipcheckup.com/county/nevada/lyon/
BibTeX
@misc{zipcheckup-county-nevada-lyon,
  author = {{ZipCheckup}},
  title  = {{Lyon County, NV: HSS 59/100; PFAS Found in Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/nevada/lyon/}
}

Page version: October 2026.

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