Boil water advisories in Idaho

Where to check instead

Our database holds 259 public water systems in Idaho. 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:

• VEOLIA WATER IDAHO
• MERIDIAN WATER DEPT
• NAMPA CITY OF
• CALDWELL CITY OF
• IDAHO FALLS CITY OF
• POCATELLO CITY OF
• COEUR D ALENE CITY OF
• TWIN FALLS CITY OF
• SUGAR CITY WATER SYSTEM
• KUNA CITY OF

Or start from a ZIP code:

Questions about this page

Does this page list every boil water advisory in Idaho?

No. We do not read Idaho DEQ'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 Idaho published?

Idaho DEQ is the agency this page links to. We checked its site on 22 August 2026 and did not find a list of active advisories published there. That is one page on one day, not a statement about what Idaho DEQ publishes, and a utility or a county may issue a notice directly.

How many water systems does this page cover?

Our database holds 259 public water systems in Idaho. 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.