Boil water advisories in Washington
We do not read this state's advisories
We checked Washington State Dept of Health's site on 4 October 2026, and it publishes its own list of active boil water advisories. We do not read that list into this page, so open it directly for what it shows now.
Washington State Dept of Health's list of active advisories
This is not a statement that your water is safe. We do not read this state's advisories, so this page cannot tell you whether one is in force. Your utility is the authority for your own water.
Where to check instead
Our database holds 753 public water systems in Washington. That is a count of what is in our database, not a count of every public water system in the state.
The largest systems we hold data on here, by the population each one reports serving:
- SEATTLE PUBLIC UTILITIES
- VANCOUVER CITY OF
- TACOMA WATER DIVISION CITY OF
- BELLEVUE CITY OF
- SPOKANE CITY OF
- ALDERWOOD WATER DISTRICT
- EVERETT PUBLIC WORKS DEPT. CITY OF
- REDMOND WATER SYSTEM CITY OF
- LAKEHAVEN WATER AND SEWER DISTRICT
- CLARK PUBLIC UTILITIES
Or start from a ZIP code:
Check a ZIP code
Enter a ZIP code and we will show you the water systems we hold for it, and what the state agency's list said about each one when we last read it.
Questions about this page
- Does this page list every boil water advisory in Washington?
- No. We do not read Washington State Dept of Health's advisories into this page, so nothing on it is a list of what is in force. What this page carries instead is where those advisories are published and which water systems our own database holds.
- Where are boil water advisories for Washington published?
- Washington State Dept of Health publishes its own list of active advisories, and this page links to it. We checked it on 4 October 2026.
- How many water systems does this page cover?
- Our database holds 753 public water systems in Washington. That is a count of what is in our database, not a count of every public water system in the state. Advisories are counted by water system, keyed on the system's federal identifier, and never by the number of separate notices one system has been given.
- Is anything on this page a verdict about whether the water is safe?
- This is not a statement that your water is safe. We do not read this state's advisories, so this page cannot tell you whether one is in force. Your utility is the authority for your own water.
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