CITY REPORT CA

Hidden Valley Lake, CA Home Safety: Home Safety 100/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Hidden Valley Lake: A.

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

Within Hidden Valley Lake, CA, the available records add up to an upper-tier grade; that grade describes records, not the water at a given faucet.

How Hidden Valley Lake Compares

Hidden Valley Lake100/100
California avg76/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs Linked to Systems with Violations
A · 100
Avg Safety Score
Zone 3
County Radon Potential (Low)
$394K
Median Home Value

What You Should Know About Hidden Valley Lake Water

  • Homes built before 1986: 32% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 14.48.

Who Supplies Your Water in Hidden Valley Lake

Just one provider appears in the list below for Hidden Valley Lake, CA, among 1 on the federal list. A listing shows which system is tied to the area, not which one serves a particular street; the water bill or the utility itself confirms that for a given address.

Overview

We track home safety data for 1 ZIP code in Hidden Valley Lake, California, covering 1 community water system serving approximately 5,721 people. 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 Hidden Valley Lake: 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

Hidden Valley Lake water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (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
95467 A Hidden Valley Lake Csd 6,235

All ZIP Codes in Hidden Valley Lake

Data Sources

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

Health Outcomes in Hidden Valley Lake

10.8%
Asthma (US: 9.8%)
14.1%
Diabetes (US: 10.4%)
18.1%
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 10.8% ↑
Diabetes 14.1% ↑
Mental Health 18.1% ↑

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

Housing & Infrastructure in Hidden Valley Lake

1997
Median Build Year
32%
Built Before 1986
3%
Built Before 1970
Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

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

Housing Age Profile

Over the decades, Hidden Valley Lake accumulated housing from multiple construction periods. The median build year of 1997 can be read against 1986, when lead solder in plumbing became federally prohibited - a regulatory line, not a safety line, and individual homes on either side of it can have different plumbing.

1997
Median Year Built
32%
Pre-1986 (lead solder era; lead paint banned 1978)
3%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (3%) 1970–1986 (29%) Post-1986 (68%)

Most homes in Hidden Valley Lake were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Lead Exposure Risk for Children in Hidden Valley Lake

32%
Homes Built Before 1986

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.

Historical NFIP Claim Context in Hidden Valley Lake

37
Total FEMA Flood Claims
$15,483
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Hidden Valley Lake contains 37 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $15,483. 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

What does the Home Safety Score mean for Hidden Valley Lake, CA?
Hidden Valley Lake 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.
How does Hidden Valley Lake compare to California average?
Hidden Valley Lake 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 Hidden Valley Lake?
Our records map 1 water system to 1 ZIP code in Hidden Valley Lake. The related population figure in our data is approximately 5,721 people; it is not a count of people served citywide.
Home → Cities → California → Hidden Valley Lake, CA

How to cite this page

APA ZipCheckup. (2026). Hidden Valley Lake, CA Home Safety: Home Safety 100/100. https://zipcheckup.com/cities/ca/hidden-valley-lake/
BibTeX
@misc{zipcheckup-cities-ca-hidden-valley-lake,
  author = {{ZipCheckup}},
  title  = {{Hidden Valley Lake, CA Home Safety: Home Safety 100/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/hidden-valley-lake/}
}

Page version: October 2026.

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