CITY REPORT CA

Patterson, CA Home Safety: Home Safety 92/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Patterson: A.

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

How does Patterson tap water hold up under EPA scrutiny? Above average for CA - documented violations are uncommon and the safety grade reflects a clean overall record.

How Patterson Compares

Patterson92/100
California avg76/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
0
ZIPs with Violations
A · 92
Avg Safety Score
Zone 3
Radon Risk (Low)
$448K
Median Home Value
$1,200
Est. Remediation (0.3% of home value)

Patterson Water: The Quick Version

  • Homes built before 1986: 32% - older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 12.27 - above typical levels.

Water Systems Serving Patterson

Residential addresses in Patterson, CA are served by 2 primary water providers out of 2 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.

Overview

We track home safety data for 1 ZIP code in Patterson, California, covering 2 community water systems serving approximately 30,407 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for Patterson: A (92/100)

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

Patterson water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0000 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 No Violations

ZIP Code Safety Score System Population
95363 A City of Patterson, 24,977

All ZIP Codes in Patterson

Data Sources

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

CDC Health Data for Patterson

10%
Asthma (US: 9.8%)
11.9%
Diabetes (US: 10.4%)
18.8%
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 10% ↑
Diabetes 11.9% ↑
Mental Health 18.8% ↑

Vertical line = national average. Above national · Below national

How Old Is Patterson's Housing Stock?

1992
Median Build Year
32%
Built Before 1986
12%
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

Some cities skew heavily toward one construction era; Patterson does not. The median build year of 1992 reflects a housing stock where older and newer homes share the market in meaningful proportions. That mixed profile means the city carries moderate aggregate plumbing-era risk - with older homes, particularly those built before 1986, representing the portion of the stock where lead-soldered joints may still be present.

1992
Median Year Built
32%
Pre-1986 (Lead Paint Risk)
12%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (12%) 1970–1986 (20%) Post-1986 (68%)

Most homes in Patterson 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.

Patterson: Remediation Cost in Perspective

Within the Patterson market, estimated remediation claims a small portion of typical property equity - the financial burden is proportionally low.

Median Home Value
$448,000
Est. Remediation
$1,200
Remediation as % of home value 0.3%

Remediation costs in Patterson are relatively low compared to home values. The $800–$1,800 estimated range is a small fraction of median property value. Home values are 39% below the California average.

Protecting Children from Lead in Patterson

32%
Homes Built Before 1986

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.

Practically, the structural drivers in Patterson - 32% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark - make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.

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

Historical Flood-Claim Evidence for Patterson

39
Total FEMA Flood Claims
$9,726
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Patterson contains 39 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,726. 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 Patterson, CA?
Patterson has an average Home Safety Score of 92/100 (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. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
How does Patterson compare to California average?
Patterson has an average Home Safety Score of 92/100, which is above the California state average of 76/100 for the same model series.
How many water systems serve Patterson?
Patterson is served by 2 public water systems across 1 ZIP code, serving approximately 30,407 people.
How much does it cost to fix water issues in Patterson?
Estimated remediation costs in Patterson average $1,200 per household, ranging from $800 to $1,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesCalifornia → Patterson, CA

How to cite this page

APA ZipCheckup. (2026). Patterson, CA Home Safety: Home Safety 92/100. https://zipcheckup.com/cities/ca/patterson/
BibTeX
@misc{zipcheckup-cities-ca-patterson,
  author = {{ZipCheckup}},
  title  = {{Patterson, CA Home Safety: Home Safety 92/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/patterson/}
}

Page version: August 2026.

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