CITY REPORT CA

Kneeland, CA Home Safety: Home Safety Score unavailable

1 ZIP code · 4 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
4
Water Systems
0
ZIPs Linked to Systems with Violations
Zone 3
County Radon Potential (Low)
$661K
Median Home Value

What You Should Know About Kneeland Water

  • Average of reported 90th-percentile lead results: 0.0036 mg/L.
  • Homes built before 1986: 56% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 12.81.

Who Supplies Your Water in Kneeland

Service in Kneeland, CA can differ by address: 4 water systems are tied to the area in federal records, and the 3 largest are listed with their violation records.

Overview

We track home safety data for 1 ZIP code in Kneeland, California (population ~1,090), covering 4 community water systems serving approximately 42,286 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

Kneeland water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0036 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

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
95549 — Humboldt Bay Mwd 680

All ZIP Codes in Kneeland

Data Sources

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

Health Outcomes in Kneeland

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

Housing & Infrastructure in Kneeland

1988
Median Build Year
56%
Built Before 1986
32%
Built Before 1970
Copper
Likely Pipe Material

With 56% 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

If you live in one of the pre-1986 homes in Kneeland, a certified lab test for lead is the direct way to learn what your tap delivers; the median build year of 1988 is only context.

1988
Median Year Built
56%
Pre-1986 (lead solder era; lead paint banned 1978)
32%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (32%) 1970–1986 (24%) Post-1986 (44%)

Over half of homes in Kneeland 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.

Lead Exposure Risk for Children in Kneeland

56%
Homes Built Before 1986
0.0036
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.

Frequently Asked Questions

Does Kneeland water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Kneeland is 0.0036 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 many water systems serve Kneeland?
Our records map 4 water systems to 1 ZIP code in Kneeland. The related population figure in our data is approximately 1,090 people; it is not a count of people served citywide.
Home → Cities → California → Kneeland, CA

How to cite this page

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

Page version: October 2026.

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