Patterson, CA Home Safety: Home Safety 92/100
1 ZIP code · 2 water systems · Updated
ZipCheckup grade for Patterson: A.
Checked records flag no major concern; missing data is unknown.
Based on available records, Patterson, CA holds an A or B ZipCheckup grade.
How Patterson Compares
Data: EPA SDWIS
Patterson Water: The Quick Version
- Homes built before 1986: 32% - older plumbing may contain lead solder.
- Health risk index (ZipCheckup composite of CDC data): 12.27.
Water Systems Serving Patterson
Counting every public water system linked to Patterson, CA in federal data gives 2. The list below keeps the 2 largest by reported population served, a figure that covers each system's whole service area rather than the city alone. A household's own supplier is named on its water bill.
- A
- A
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 of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
1 of 1 ZIP records with known zones is in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 95363 | A | City of Patterson, | 24,977 |
All ZIP Codes in Patterson
- 95363 [A]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Patterson
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Old Is Patterson's Housing Stock?
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
Lead solder was allowed in new plumbing until the 1986 federal restrictions, which is why older homes in Patterson deserve a closer look; the median build year is 1992.
Most homes in Patterson were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Protecting Children from Lead in Patterson
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Patterson
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.
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.
Deep Dive Reports
Detailed analysis for Patterson, CA