Lafayette
Lafayette, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
lafayette water works
groundwater (wells) · local government · PWSID IN5279013
Below EPA's 15 ppb lead action level at last testing.
Source: EPA Safe Drinking Water Information System (SDWIS) · 2026 Q1
Lafayette is a small but growing city and the 10th-largest in Indiana, home to roughly 71,111 residents. Lafayette's drinking water comes largely from the same regional sources that serve Indiana: Ohio River, Wabash River, and glacial aquifers.
As elsewhere in Indiana, the central challenge is aging infrastructure. Generally adequate supply with localized concerns around industrial use and infrastructure age.
Indiana reuses an estimated 4% of its treated wastewater and maintains minimal reuse programs; Lafayette tracks no meaningful drought conditions on the U.S. Drought Monitor scale.
Explore the Indiana profile for statewide context, or dig into the water issues shaping Lafayette below.
Tippecanoe County water quality
Source: EPA SDWIS · 2026 Q1
At a glance
- Population ~71,111 (10th-largest in Indiana)
- Primary sources: Ohio River, Wabash River, and glacial aquifers
- Drought: no meaningful conditions
- State reuse rate: ~4% of wastewater
Common questions
Is tap water safe in Lafayette?
Lafayette's largest water system, LAFAYETTE WATER WORKS, serves about 70,835 people. EPA records show 0 health-based violation(s) since 2016 and a most-recent 90th-percentile lead level of 3.8 ppb (EPA action level is 15 ppb). Always check your own provider's annual Consumer Confidence Report.
Where does Lafayette get its water?
LAFAYETTE WATER WORKS draws primarily from groundwater (wells), part of Indiana's supply from Ohio River, Wabash River, glacial aquifers.
Related water issues
Aging Infrastructure
Much of America's water infrastructure is decades past its design life, leaking trillions of gallons a year and demanding hundreds of billions in reinvestment.
ExploreAgricultural Demand
Agriculture accounts for the majority of consumptive water use in the West, making farm efficiency and water markets central to any supply solution.
Explore