LeadPipeLookup

State overview

Lead service lines in Idaho

Aggregated lead pipe inventory data for all 1,948 public water systems in Idaho, serving approximately 1,742,859 residents.

Last verified from EPA SDWIS: 2026-04-14
Water systems
1,948
Population served
1,742,859
Known lead lines
0
Unknown material
0

Lead Service Lines in Idaho

Idaho's water systems serve about 1.7 million people across 1,948 public water utilities. The state currently has no documented lead service lines in its inventory data. However, this does not mean lead pipes don't exist—it means they have not yet been systematically identified or reported.

Why this matters

Lead service lines are the pipes that connect your home to the public water main. Water running through lead pipes can pick up lead, especially in homes built before the 1980s. Even small amounts of lead exposure can affect health, particularly for children and pregnant people. The good news: lead exposure is preventable with the right information and steps.

What Idaho is doing

Federal law now requires all water systems to inventory their service lines and identify which ones contain lead. Idaho utilities are working to gather this information. The state has not yet received federal infrastructure funding specifically for lead line replacement, but utilities may have local or state grant programs available.

Your water system's inventory status

Most of Idaho's smaller utilities—including tribal systems like Plummer Tribal Community and operations at facilities like Pocatello Airport—have not yet reported detailed lead service line data. This is normal during the ongoing inventory process. Your utility may still be collecting information from property records, water meter cards, and on-site inspections.

What you should do now

If your home was built before 1990, assume your service line could be lead or galvanized steel (which can also leach metals). You don't need to panic, but you do need information specific to your address.

Contact your local water utility by name to ask:

  • Does the city or county have a map of service line materials in my neighborhood?
  • What year was my service line installed?
  • Can they test the water at my meter or provide guidance on a plumber-conducted test?

Testing your water for lead is cheap and fast. If elevated lead is found, a certified plumber can advise whether your line needs replacement or if flushing the system helps. The CDC has guidance for families on reducing lead exposure while you plan longer-term fixes.

Next steps for residents

  • Contact your water utility with your address and ask about your service line material and age.
  • Request a water test if your home was built before 1990 or if you're concerned about lead.
  • Visit the EPA's lead page for testing, treatment, and replacement resources.
  • Talk to your pediatrician or doctor if you have health concerns about lead exposure.

Largest public water systems in Idaho

UtilityPWSIDPopulationKnown leadUnknown
PLUMMER TRIBAL COMMUNITY101612110———
COEUR D'ALENE CASINO101600015———
BANNOCK PEAK STORE101600005———
POCATELLO AIRPORT101600009———
DESMET101600001———
BIA NORTH IDAHO101612108———
BIG SKY N. SUBDIVISION101600010———
CLEARWATER RIVER CASINO & RESORT101600016———
SAGE HILL TRAVEL CENTER101612113———
SOUTH LAPWAI101600003———
COEUR D'ALENE SUB-AGENCY101600002———
FORT HALL101612109———
KAMIAH101611104———
NORTH LAPWAI101611105———
VEOLIA WATER IDAHOID4010016264,978——
MERIDIAN WATER DEPTID4010097147,340——
NAMPA CITY OFID3140080100,200——
CALDWELL CITY OFID314001374,000——
IDAHO FALLS CITY OFID710003969,450——
POCATELLO CITY OFID603004358,231——
TWIN FALLS CITY OFID542005856,121——
COEUR D ALENE CITY OFID128005354,115——
REXBURG CITY OFID733002239,790——
KUNA CITY OFID401008532,038——
MOSCOW WATER DEPTID229002326,000——

Cities in Idaho

More on lead pipes in Idaho

Frequently asked about lead pipes in Idaho

Does Idaho have lead in the water?

Idaho has no documented lead service lines in current state inventory data, but this doesn't mean lead pipes don't exist—they're still being identified. Lead exposure depends on whether your home's service line is lead, how old it is, and your water's chemistry. Contact your utility to find out about your specific address.

How do I know if my house has a lead service line?

Call your water utility with your address and ask for the material and installation year of your service line. If they don't have records, a plumber can inspect the pipe at your meter or where it enters your home—lead is soft and dull gray, while copper is shiny and reddish-brown.

Is the water safe to drink in Idaho?

Idaho's public water systems meet federal safety standards. However, if lead is present in pipes *between the water main and your home*, the utility isn't responsible for that part. Testing the water at your tap is the only way to know if lead is actually reaching your home.

What should I do if my house has a lead service line?

You have options: flushing before use, installing a certified filter, or replacing the line over time. Talk to your water utility about available grants or rebates, and consult a licensed plumber about what makes sense for your situation.