Laguna Woods, CA carries a grade in ZipCheckup's upper tier; any health-based violations on record should be checked per water system.

Data: EPA SDWIS

Overview

We track home safety data for 1 ZIP code in Laguna Woods, California (population ~17,342), covering 3 community water systems serving approximately 240,440 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.

Home Safety Score

Average Home Safety Score for Laguna Woods: 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

Laguna Woods water systems draw from: Surface water.

Lead & Copper

• Average of reported 90th-percentile lead results: 0.0008 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

All ZIP Codes in Laguna Woods

• 92637 [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.

Housing Age Profile

Ask the water utility whether your address in Laguna Woods has a lead service line; its inventory can answer what a median build year of 1961 cannot.

1961

Median Year Built

93%

Pre-1986 (lead solder era; lead paint banned 1978)

54%

Pre-1970 (Lead Pipes Risk)

Pre-1970 (54%) 1970–1986 (39%) Post-1986 (7%)

Over half of homes in Laguna Woods 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.

Cost Context: What Remediation Means for Laguna Woods Homeowners

How large is the remediation estimate next to home prices in Laguna Woods? Small in relative terms: it amounts to 1% of the median value or less, although the dollar figure below is still an estimate and actual costs vary by property and contractor.

Median Home Value

$364,900

Est. Remediation

$500

Remediation as % of home value 0.1%

Estimated remediation costs in Laguna Woods can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 51% below the California average.

Lead Exposure Risk for Children in Laguna Woods

93%

Homes Built Before 1986

0.0008

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.