Indiana
Indiana sits in the Midwest and draws its water primarily from Ohio River, Wabash River, and glacial aquifers. With roughly 6.8 million residents, the state has minimal formal water reuse to date, reusing an estimated 4% of its treated wastewater.
Indianawater quality & safety
Top violation drivers in Indiana
| Contaminant / rule | Systems |
|---|---|
| LEAD AND COPPER RULE REVISIONS | 64 |
| Revised Total Coliform Rule | 38 |
| Groundwater Rule | 37 |
| Total Haloacetic Acids (HAA5) | 25 |
| TTHM | 24 |
| Lead and Copper Rule | 23 |
Source: EPA Safe Drinking Water Information System (SDWIS) · 2026 Q1 · health-based violations since 2016
Generally adequate supply with localized concerns around industrial use and infrastructure age.
On the U.S. Drought Monitor scale, Indiana currently tracks around no drought conditions. Indiana has 718 community water systems serving about 5 million people; EPA records show 189 of them (26.3%) with a health-based Safe Drinking Water Act violation since 2016. The pages below break down the water issues that matter most here and the communities working on solutions.
Drought history — severe+ extent
% of Indiana in severe drought or worse (D2+) each late summer.
Source: U.S. Drought Monitor (NDMC/UNL, USDA, NOAA) · latest 2026-06-09
Water use (USGS 2015)
- Per-capita (public supply)
- 127 gpcd
- Total withdrawals
- 7.2 Bgal/d
- From groundwater
- 9.7%
- Irrigation share
- 1.9%
- Wastewater reused (est.)
- ~4%
Primary water sources
- ≈ Ohio River
- ≈ Wabash River
- ≈ glacial aquifers
Common questions
Is tap water safe in Indiana?
Indiana has 718 community water systems serving about 5 million people. EPA records show 189 of them (26.3%) with at least one health-based Safe Drinking Water Act violation since 2016, and 16 system(s) over the federal lead action level. Most large systems meet standards; check your specific city and your utility's annual report.
What contaminants are most common in Indiana's water?
The most frequent health-based violations involve LEAD AND COPPER RULE REVISIONS, Revised Total Coliform Rule, Groundwater Rule.
How much water does Indiana use per person?
Public water systems in Indiana withdraw about 127 gallons per person per day (USGS 2015), drawing 9.7% of fresh water from groundwater.
How bad is the drought in Indiana?
As of 2026-06-09, 0% of Indiana is in drought (D1+) and 0% is in severe drought or worse, per the U.S. Drought Monitor.
Cities in Indiana
17 trackedIndianapolis
Indianapolis, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Fort Wayne
Fort Wayne, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Evansville
Evansville, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
South Bend
South Bend, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Carmel
Carmel, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Bloomington
Bloomington, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Hammond
Hammond, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Gary
Gary, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Fishers
Fishers, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Lafayette
Lafayette, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Muncie
Muncie, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Terre Haute
Terre Haute, IN water profile — supply sources, drought status, wastewater reuse, and the key water issues facing the city.
Key issues in Indiana
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