LeadPipeLookup

State overview

Lead service lines in Wyoming

Aggregated lead pipe inventory data for all 726 public water systems in Wyoming, serving approximately 628,007 residents.

Last verified from EPA SDWIS: 2026-04-14
Water systems
726
Population served
628,007
Known lead lines
0
Unknown material
0

Lead Service Lines in Wyoming

Wyoming's 726 public water systems serve approximately 628,000 people. As of the latest reporting, no known lead service lines have been identified in the state's water systems, and no galvanized lines have been recorded either.

This is good news—but it doesn't mean lead pipes aren't present. Many water systems across the country haven't completed full inventories of their underground pipes yet. Wyoming's systems may still be in the process of mapping their infrastructure. Lead service lines can exist without being documented, especially in older neighborhoods built before the 1980s.

What you should know

Lead service lines connect your home to the public water main. If your home was built before 1986, there's a higher chance your service line contains lead—even in Wyoming. The only way to know for sure is to have it tested or to contact your water utility directly.

Even if Wyoming systems report zero lead lines, your individual home may still have lead pipes. Public water systems only manage the main line. Inside your home, older plumbing fixtures, solder, and brass fittings can also contain lead.

Wyoming has not received federal Infrastructure Investment and Jobs Act (BIPARTISAN) funding for lead line replacement as of the latest available data. This means utility-led replacement programs may be limited. If your system does identify lead lines, replacement costs may fall on property owners rather than utilities.

How to find out about your water system

Your water utility is your first stop. They can tell you:

  • Whether your neighborhood has known lead service lines
  • If your system is still conducting an inventory
  • What steps they're taking to identify and replace lead pipes

Water utilities are required to maintain this information and share it with customers. A quick phone call or email to your local utility (or a search for "[your city] water department") will get you answers specific to your area.

Next steps for residents

  • Contact your local water utility and ask directly whether lead service lines have been identified in your neighborhood.
  • If your home was built before 1986, ask your utility whether your property has a lead service line.
  • Have your water tested if you're concerned; your utility can recommend an EPA-certified lab or may offer testing.
  • Check your plumbing fixtures indoors—even if your service line is safe, older faucets and fixtures can leach lead.

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Largest public water systems in Wyoming

UtilityPWSIDPopulationKnown leadUnknown
FORT WASHAKIE085690003———
ST. STEPHENS INDIAN MISSION, INC.085690010———
ARAPAHOE COMM WATER SYSTEM085690004———
ARAPAHOE INDUSTRIAL PARK085690008———
WY DOT-DIVERSION DAM RA085690016———
CROWHEART STORE085690017———
ETHETE WATER SYSTEM085690002———
CHEYENNE BOARD OF PUBLIC UTILITIESWY560001164,165——
CASPER, CITY OFWY560141559,000——
LARAMIE, CITY OFWY560002932,395——
GILLETTE, CITY OFWY560001932,222——
JACKSON, TOWN OFWY560021324,760——
ROCK SPRINGS, CITY OFWY560118224,000——
SHERIDAN, CITY OFWY560005222,700——
EVANSTON, CITY OFWY560015012,000——
GREEN RIVER, CITY OFWY560118110,500——
RIVERTON, CITY OFWY560004710,330——
CODY, CITY OFWY560020710,224——
SOUTH CHEYENNE WATER & SEWER DISTRICTWY560023910,000——
RAWLINS WATER SUPPLY, CITY OFWY56000459,006——
YNP-OLD FAITHFULWY56800857,675——
LANDER, CITY OFWY56001767,615——
NORTHWEST RURAL WATER DISTRICTWY56012547,330——
TORRINGTON MUNICIPAL WATER DEPT, CITY OFWY56001646,847——
DOUGLAS, CITY OFWY56001376,400——

Cities in Wyoming

More on lead pipes in Wyoming

Frequently asked about lead pipes in Wyoming

Does Wyoming have lead in the water?

Wyoming's public water systems currently report no known lead service lines. However, this doesn't guarantee your home is lead-free—many systems are still completing full inventories, and older homes may have lead pipes. Contact your water utility to check your specific neighborhood.

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

Contact your water utility and ask directly. They maintain records of service lines. If your home was built before 1986, the risk is higher. You can also dig up a small section of the line near the curb and inspect it—lead is soft, gray, and leaves a mark when scratched.

Is Wyoming water safe to drink?

Wyoming water systems regularly test for contaminants including lead and must meet federal safety standards. However, safety depends on your specific utility and home plumbing. Ask your water utility for their latest water quality report, which is free and public.

What should I do if I think I have a lead service line?

Contact your water utility to confirm. If a lead service line exists, you can reduce exposure by running cold water for 30 seconds before drinking or cooking, and having your water tested. For replacement, ask your utility about programs or contact a licensed plumber.