CITY REPORT CA

La Honda, CA Home Safety: Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$1.2M
Median Home Value

Key Facts for La Honda Residents

  • Average of reported 90th-percentile lead results: 0.004 mg/L.
  • Homes built before 1986: 75% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 9.58.

La Honda's Water Providers

Federal drinking water data connect ZIP codes in La Honda, CA to a count of 1 system, and the list on this page shows one of them. A listing reflects that link, not proof of which system serves a given street.

Overview

We track home safety data for 1 ZIP code in La Honda, California (population ~1,745), covering 1 community water system serving approximately 61,431 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

La Honda water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0040 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 2.

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
94020 — California Water Service - Bear Gulch 61,431

All ZIP Codes in La Honda

Data Sources

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

La Honda Community Health Snapshot

8.5%
Asthma (US: 9.8%)
10.6%
Diabetes (US: 10.4%)
13.1%
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 8.5% ↓
Diabetes 10.6% ↑
Mental Health 13.1% ↓

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

La Honda Infrastructure Age

1952
Median Build Year
75%
Built Before 1986
60%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 75% 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

Renovation history matters as much as age: in La Honda, with a median build year of 1952, some older homes have been replumbed and some have not.

1952
Median Year Built
75%
Pre-1986 (lead solder era; lead paint banned 1978)
60%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (60%) 1970–1986 (15%) Post-1986 (25%)

Over half of homes in La Honda 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.

La Honda: Lead Risk & Vulnerable Populations

75%
Homes Built Before 1986
0.004
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.

La Honda: NFIP Claim Records and Water-Quality Context

28
Total FEMA Flood Claims
$20,039
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for La Honda contains 28 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $20,039. 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.

Frequently Asked Questions

Does La Honda water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of La Honda is 0.004 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 La Honda?
Our records map 1 water system to 1 ZIP code in La Honda. The related population figure in our data is approximately 1,745 people; it is not a count of people served citywide.
Home → Cities → California → La Honda, CA

How to cite this page

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

Page version: October 2026.

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