CITY REPORT CA

Windsor, CA: 1 Violation - Home Safety 100/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Windsor: A.

No federal data flags a major home-safety concern for this ZIP.

Windsor's tap water quality puts it in CA's upper tier - health-based violations are rare and the compliance record is consistently above average.

How Windsor Compares

Windsor100/100
California avg76/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs with Violations
A · 100
Avg Safety Score
Zone 3
Radon Risk (Low)
$778K
Median Home Value
$1,200
Est. Remediation (0.1% of home value)

What You Should Know About Windsor Water

  • Your city's water systems recorded 1 violation in the past 5 years.
  • Average lead level: 0.006 mg/L.
  • Homes built before 1986: 34% - older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 11.32.

Who Supplies Your Water in Windsor

3 water utilities share the residential service territory in Windsor, CA - out of 5 total systems in federal records.

Overview

We track home safety data for 1 ZIP code in Windsor, California (population ~27,455), covering 5 community water systems serving approximately 220,043 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Windsor: A (100/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Windsor water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0060 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 3 (Low Risk)

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
95492 A 1 0 Windsor, Town of

All ZIP Codes in Windsor

  • 95492 [A] - 1 violation

Data Sources

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

Health Outcomes in Windsor

9.8%
Asthma (US: 9.8%)
10.7%
Diabetes (US: 10.4%)
15.8%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 9.8% ↓
Diabetes 10.7% ↑
Mental Health 15.8% ↑

Vertical line = national average. Above national · Below national

Housing & Infrastructure in Windsor

1997
Median Build Year
34%
Built Before 1986
6%
Built Before 1970
Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

For a city with a median build year of 1997, Windsor carries a housing profile that straddles the 1986 federal ban on lead solder in plumbing. Neither predominantly new nor predominantly old, the stock presents a moderate aggregate risk environment - with individual risk varying sharply depending on when and where a specific home was built.

1997
Median Year Built
34%
Pre-1986 (Lead Paint Risk)
6%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (6%) 1970–1986 (28%) Post-1986 (66%)

Most homes in Windsor were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Windsor Homeowners

In Windsor, documented water and safety issues can be addressed without making a meaningful dent in home equity - the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.

Median Home Value
$777,700
Est. Remediation
$1,200
Remediation as % of home value 0.1%

Remediation costs in Windsor are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 5% above the California average.

Lead Exposure Risk for Children in Windsor

34%
Homes Built Before 1986
0.006
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 34% of Windsor stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical NFIP Claim Context in Windsor

40
Total FEMA Flood Claims
$11,531
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Windsor contains 40 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,531. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$1,200</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

What does the Home Safety Score mean for Windsor, CA?
Windsor has an average Home Safety Score of 100/100 (Grade A) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 1 EPA violation has been recorded. Check individual ZIP code reports for component details.
How many water violations does Windsor have?
Windsor water systems have a total of 1 EPA violation. Violations are tracked across 1 ZIP code.
Does Windsor water have lead?
The average 90th-percentile lead level in Windsor is 0.006 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Windsor compare to California average?
Windsor has an average Home Safety Score of 100/100, which is above the California state average of 76/100 for the same model series.
How many water systems serve Windsor?
Windsor is served by 5 public water systems across 1 ZIP code, serving approximately 27,455 people.
How much does it cost to fix water issues in Windsor?
Estimated remediation costs in Windsor average $1,200 per household, ranging from $800 to $1,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesCalifornia → Windsor, CA

How to cite this page

APA ZipCheckup. (2026). Windsor, CA: 1 Violation - Home Safety 100/100. https://zipcheckup.com/cities/ca/windsor/
BibTeX
@misc{zipcheckup-cities-ca-windsor,
  author = {{ZipCheckup}},
  title  = {{Windsor, CA: 1 Violation - Home Safety 100/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/windsor/}
}

Page version: August 2026.

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