City of Lynnwood
EPA ID: WA5349270 · 68,204 people served · 5 ZIP codes
From the earliest to the most recent cycle in the five-year EPA window, City of Lynnwood has logged zero violations — no MCL exceedances, no health advisories, and no enforcement activity across the entire period for the 68,204 people in its service area, a record that stands up well against both state and national benchmarks.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for City of Lynnwood Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The City of Lynnwood serves a community with a median household income of $105,449 and an estimated 152,182 residents across its service area. Approximately 52% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
City of Lynnwood'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 1% of homes in Snohomish County, Washington rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
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
City of Lynnwood (EPA ID: WA5349270) is a community water system in Washington that serves approximately 68,204 people from surface water sources.
This system provides water to 5 ZIP codes across 2 communities.
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: 4 ZIP codes 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 City of Lynnwood (WA5349270) on EPA.gov.
Frequently Asked Questions
Is City of Lynnwood water safe to drink?
Based on EPA records, City of Lynnwood has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does City of Lynnwood serve?
City of Lynnwood serves approximately 68,204 people across 5 ZIP codes in Washington.
Where does City of Lynnwood get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.