CITY REPORT CA

El Sobrante, CA Home Safety: Home Safety Score unavailable

2 ZIP codes · 1 water system · Updated

Data: EPA SDWIS

2
ZIP Codes
1
Water Systems
0
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$729K
Median Home Value
$500
Est. Remediation (0.1% of home value)

What You Should Know About El Sobrante Water

  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 10.72.

Who Supplies Your Water in El Sobrante

Just one provider appears in the list below for El Sobrante, 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 2 ZIP codes in El Sobrante, California (population ~27,588), covering 1 community water system serving approximately 1,442,800 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Water Sources

El Sobrante water systems draw from: Surface water.

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

2 of 2 ZIP records with known zones are 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
94803 — East Bay Municipal Utility District 1,442,800

All ZIP Codes in El Sobrante

Data Sources

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

Health Outcomes in El Sobrante

9.4%
Asthma (US: 9.8%)
11.3%
Diabetes (US: 10.4%)
15.3%
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 9.4% ↓
Diabetes 11.3% ↑
Mental Health 15.3% ↑

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

Cost Context: What Remediation Means for El Sobrante Homeowners

Of the three cost-context tiers - low, moderate and elevated - El Sobrante is in the low one.

Median Home Value
$729,000
Est. Remediation
$500
Remediation as % of home value 0.1%

Estimated remediation costs in El Sobrante 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 1% below the California average.

Historical NFIP Claim Context in El Sobrante

40
Total FEMA Flood Claims
$43,783
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for El Sobrante contains 40 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $43,783. 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. The $500 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

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

How many water systems serve El Sobrante?
Our records map 1 water system to 2 ZIP codes in El Sobrante. The related population figure in our data is approximately 27,588 people; it is not a count of people served citywide.
How much does it cost to fix water issues in El Sobrante?
Estimated remediation cost per household in El Sobrante: $500; modeled range $300 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

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

Page version: October 2026.

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