North Whidbey Water District
EPA ID: WA5361603 · 568 people served · 2 ZIP codes
Water monitoring for North Whidbey Water District: clean, five years, 568 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 2 (2023) to 12 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for North Whidbey Water District Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The North Whidbey Water District serves a community with a median household income of $79,326 and an estimated 42,516 residents across its service area. Approximately 49% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
North Whidbey Water District's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 2% of homes in Island County, Washington rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Washington
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
North Whidbey Water District (EPA ID: WA5361603) is a community water system in Washington that serves approximately 568 people from surface water sources.
This system provides water to 2 ZIP codes across 1 community.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 1 ZIP code confirmed via EPA Community Water System Service Area Boundaries v3 plus 1 additional ZIP inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for North Whidbey Water District (WA5361603) on EPA.gov.
Frequently Asked Questions
Is North Whidbey Water District water safe to drink?
Based on EPA records, North Whidbey Water District has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does North Whidbey Water District serve?
North Whidbey Water District serves approximately 568 people across 2 ZIP codes in Washington.
Where does North Whidbey Water District get its water?
The primary water source is surface water.