CITY REPORT CA

Samoa, CA Home Safety: Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
0
ZIPs with Violations
Zone 3
Radon Risk (Low)
$422K
Median Home Value

Key Facts for Samoa Residents

  • Average lead level: 0.0021 mg/L.
  • Homes built before 1986: 86% - older plumbing may contain lead solder.
  • CDC health risk index: 12.81 - above typical levels.

Samoa's Water Providers

At present, 2 utilities serve the bulk of Samoa, CA's residential water connections out of 2 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.

Overview

We track home safety data for 1 ZIP code in Samoa, California (population ~477), covering 2 community water systems serving approximately 1,430 people region-wide. 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.

Water Sources

Samoa water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0021 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
95564 Humboldt Bay Mwd 680

All ZIP Codes in Samoa

Data Sources

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

Samoa 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). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

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

Vertical line = national average. Above national · Below national

Samoa Infrastructure Age

1900
Median Build Year
86%
Built Before 1986
81%
Built Before 1970
Galvanized Steel or Lead
Likely Pipe Material

With 86% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

When a city's housing median build year is 1900, as in Samoa, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.

1900
Median Year Built
86%
Pre-1986 (Lead Paint Risk)
81%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (81%) 1970–1986 (5%) Post-1986 (14%)

Over half of homes in Samoa were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Samoa: Lead Risk & Vulnerable Populations

86%
Homes Built Before 1986
0.0021
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.

After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted - but 86% of the Samoa inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.

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

Frequently Asked Questions

Does Samoa water have lead?
The average 90th-percentile lead level in Samoa is 0.0021 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 many water systems serve Samoa?
Samoa is served by 2 public water systems across 1 ZIP code, serving approximately 477 people.
HomeCitiesCalifornia → Samoa, CA

How to cite this page

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

Page version: August 2026.

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