CITY REPORT CA

Eureka, CA Home Safety: Home Safety 100/100

3 ZIP codes · 5 water systems · Updated

ZipCheckup grade for Eureka: A.

Checked records flag no major concern; missing data is unknown.

Looking at federal compliance records for Eureka, CA: the city earns a grade in the top two bands here, and each serving system's violation history can be reviewed individually for what lies behind it.

How Eureka Compares

Eureka100/100
California avg76/100
National avg73/100

Data: EPA SDWIS

3
ZIP Codes
5
Water Systems
0
ZIPs Linked to Systems with Violations
A · 100
Avg Safety Score
Zone 3
County Radon Potential (Low)
$412K
Median Home Value

Key Facts for Eureka Residents

  • Average of reported 90th-percentile lead results: 0.003 mg/L.
  • Homes built before 1986: 79% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 12.81.

Eureka's Water Providers

When a city is linked to 5 water systems, as Eureka, CA is in federal records, water in one neighborhood may come from a different system than in another. The 3 systems with the largest reported populations are shown below, and their compliance records are kept separately, so a violation logged for one does not describe the others.

Overview

We track home safety data for 3 ZIP codes in Eureka, California, covering 5 community water systems serving approximately 47,414 people. The EPA snapshots used for this build directly map water systems to 2 of 3 ZIP codes.

The available EPA record reports 0 violations for 2 ZIP codes with a reported violation count.

Home Safety Score

Average Home Safety Score for Eureka: 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

Eureka water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0030 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 2 ZIP codes with known status exceed the EPA lead action level

Radon Risk

3 of 3 ZIP records with known zones are 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
95501 A Humboldt Bay Mwd 680
95503 A Humboldt Bay Mwd 680

All ZIP Codes in Eureka

Data Sources

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

Eureka Community Health Snapshot

11%
Asthma (US: 9.8%)
11.4%
Diabetes (US: 10.4%)
19.7%
Poor Mental Health (US: 14.8%)

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

Asthma 11% ↑
Diabetes 11.4% ↑
Mental Health 19.7% ↑

Vertical line = national average. ■ Above national · ■ Below national

Eureka Infrastructure Age

1967
Median Build Year
79%
Built Before 1986
59%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 79% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Lead can reach tap water from service lines, solder and brass fittings inside a building, which is why housing age draws attention in Eureka, where the median build year is 1967.

1967
Median Year Built
79%
Pre-1986 (lead solder era; lead paint banned 1978)
59%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (59%) 1970–1986 (20%) Post-1986 (21%)

Over half of homes in Eureka were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Eureka: Lead Risk & Vulnerable Populations

79%
Homes Built Before 1986
0.003
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

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.

Eureka: NFIP Claim Records and Water-Quality Context

42
Total FEMA Flood Claims
$48,653
Avg Reported Sum With Payment Data
50%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Eureka contains 42 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $48,653. Among ZIP codes with claim records, 50% 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 Eureka, CA

Frequently Asked Questions

What does the Home Safety Score mean for Eureka, CA?
Eureka has an average Home Safety Score of 100/100 (Grade A) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
Does Eureka water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Eureka is 0.003 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Eureka compare to California average?
Eureka has an average Home Safety Score of 100/100, which is at or above the California state average of 76/100 for the same model series.
How many water systems serve Eureka?
Our records map 5 water systems to 3 ZIP codes in Eureka. The related population figure in our data is approximately 47,414 people; it is not a count of people served citywide.
Home → Cities → California → Eureka, CA

How to cite this page

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

Page version: October 2026.

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