Lead Pipe Map

Missouri · population 71,098

Lead pipes in St. Joseph, MO

1,255 lead or galvanized lines to replace

Most of St. Joseph (population 71,098) gets its water from Mo American St Joseph. That system reported 1,087 lead and 168 galvanized-requiring-replacement service lines out of 35,438, with 25,173 more of unknown material.

3.5% of Mo American St Joseph's service lines are lead or galvanized requiring replacement, about the same as the Missouri average (3.3%) and about the same as the national average (3.1%).

1,087Lead
168Galvanized, replace
25,173Unknown material
9,010Non-lead

Latest lead test for Mo American St Joseph (Jan 2023–Dec 2025): 3 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.

Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for Mo American St Joseph.

Water systems serving St. Joseph

Water systemLeadGalv.Unknown% lead
Mo American St JosephMain system1,08716825,1733.5%

Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.

Check your address in St. Joseph

The counts above cover the whole water system. To see whether your line is lead, look up your address on Mo American St Joseph's official inventory. Utilities had to make these public by October 16, 2024.

Find the official inventory mapMo American St Joseph details

No map yet? Do the 2-minute scratch and magnet test.

Protect your drinking water

If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.

Pitcher filtersCheapest start. Pick one certified to NSF/ANSI 53 for lead, such as Brita Elite, PUR Plus or ZeroWater.See pitchers Faucet-mount filtersFilters straight from the tap. Look for NSF/ANSI 53 lead reduction on the box.See faucet filters Under-sink systemsBest for families. Carbon block (NSF 53) or reverse osmosis (NSF 58) units rated for lead.See under-sink

Choosing a lead-certified filter · Testing your water · Replacement cost

Nearby cities

Check another water system

Questions

Does St. Joseph, MO have lead pipes?

Yes. Mo American St Joseph, which serves St. Joseph, reported 1,087 lead and 168 galvanized-requiring-replacement service lines, plus 25,173 of unknown material.

Who supplies water to St. Joseph?

EPA's service area maps place most of St. Joseph in Mo American St Joseph's service area (PWSID MO1010714).

How do I check whether my St. Joseph home has a lead service line?

Search your address on Mo American St Joseph's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.

When will lead pipes in St. Joseph be replaced?

EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Mo American St Joseph whether your street is scheduled and whether it covers the private side.