La Habra, CA Water Safety: 86/100 (2026)
3 ZIP codes · 6 water systems · Updated 2026-06-03
Within La Habra, safety indicators for tap water remain above the CA median — documented violations are infrequent and the city's compliance record sits in the upper tier.
How La Habra Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for La Habra Residents
- Estimated remediation: $1,800 per household.
- CDC health risk index: 10.23.
La Habra's Water Providers
Across La Habra, CA, residential water comes from 3 primary utilities rather than a single consolidated provider. Each system operates independently — managing its own distribution infrastructure, rate schedules, and EPA compliance filings. Federal records track 6 water systems in the area, with these top providers accounting for the majority of residential connections.
Overview
We track water quality and home safety data for 3 ZIP codes in La Habra, California (population ~68,615), covering 6 community water systems serving approximately 371,763 people region-wide.
No EPA violations recorded across any ZIP codes in La Habra — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for La Habra: A (86/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
La Habra water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for La Habra
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 3 ZIP codes
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 90631 | B | City of La Habra | 63,118 |
| 90632 | A | City of La Habra | 63,118 |
| 90633 | A | City of La Habra | 63,118 |
All ZIP Codes in La Habra
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
Updated daily.
La Habra Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Remediation Costs Compare in La Habra
The household financial picture for La Habra homeowners is proportionally favorable — addressing documented issues claims a small slice of equity, and the cost-to-value ratio puts this area well within the manageable tier.
Remediation costs in La Habra are relatively low compared to home values. The $1,200–$2,600 estimated range is a small fraction of median property value. Home values are 3% above the California average.
La Habra: Flood History & Water Damage Risk
Across the NFIP's long tracking period, La Habra shows 17 claims and 33% of ZIP codes within FEMA-designated flood zones — figures that place it in moderate flood exposure territory. At this level, the water-quality implications of flooding — contaminated wells, stressed treatment intake, distribution backflow — move from theoretical edge cases to genuine periodic risks, particularly during higher-severity events.
La Habra has a moderate flood history with 17 FEMA claims averaging $1,457 per payout. 33% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$1,800</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for La Habra, CA