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Indianapolis, IN Tap Water Quality

Water safety reports for all 63 ZIP codes in Indianapolis, Indiana

Average Score

49/100

Health Violations

315

ZIP Codes

63

High Lead Risk

27

of 63 ZIP codes

D

About Tap Water in Indianapolis, IN

Tap water quality in Indianapolis, IN is a significant concern, currently receiving a below-average safety score of 49/100 across 63 ZIP codes. With 315 health-based violations recorded in the past 5 years, systems like Citizens Water - Indianapolis have struggled to maintain compliance with EPA regulations enforced by Indiana Department of Environmental Management. Residents are strongly encouraged to utilize certified water filtration systems.

The accumulation of 315 health-based violations over the past 5 years highlights systemic challenges within Indianapolis's water infrastructure. When violations occur, it means that drinking water tests revealed contaminant levels exceeding safe limits, triggering mandatory corrective actions by Indiana Department of Environmental Management. The city relies on surface water, which may require significant treatment upgrades to address these recurring issues.

Additionally, lead exposure risk remains a critical issue for certain neighborhoods. EPA data indicates that 27 out of 63 ZIP codes in Indianapolis are rated as High or Very High risk for lead. This risk is often driven by aging homes with pre-1986 plumbing containing lead solder or service lines. Families in these areas should test their tap water and consider NSF/ANSI 53 certified filters.

⚠ Lead Risk Alert: Some ZIP codes in Indianapolis are rated High or Very High for lead exposure risk based on EPA data. Search your specific ZIP code for a detailed lead level report.

Health-Based Contaminant Violations in Indianapolis

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Indianapolis water systems over the past 5 years.

Consumer Confidence Report RuleStage 2 DBP RuleHaloacetic Acids (HAA5)

Note: The presence of a past violation does not necessarily mean current water is unsafe. Utilities are required to take corrective action. Review your Consumer Confidence Report for the latest status.

Water Quality by ZIP Code — Indianapolis, IN

Click any ZIP code for the full water quality report

C
46202

Indianapolis, IN

Score: 56/1005 violations
C
46204

Indianapolis, IN

Score: 56/1005 violations
C
46206

Indianapolis, IN

Score: 56/1005 violations
C
46231

Indianapolis, IN

Score: 56/1005 violations
C
46235

Indianapolis, IN

Score: 56/1005 violations
C
46236

Indianapolis, IN

Score: 56/1005 violations
C
46239

Indianapolis, IN

Score: 56/1005 violations
C
46254

Indianapolis, IN

Score: 56/1005 violations
C
46278

Indianapolis, IN

Score: 56/1005 violations
C
46290

Indianapolis, IN

Score: 56/1005 violations
D
46201

Indianapolis, IN

Score: 51/1005 violations
D
46208

Indianapolis, IN

Score: 51/1005 violations
D
46214

Indianapolis, IN

Score: 51/1005 violations
D
46218

Indianapolis, IN

Score: 51/1005 violations
D
46222

Indianapolis, IN

Score: 51/1005 violations
D
46225

Indianapolis, IN

Score: 51/1005 violations
D
46229

Indianapolis, IN

Score: 51/1005 violations
D
46234

Indianapolis, IN

Score: 51/1005 violations
D
46237

Indianapolis, IN

Score: 51/1005 violations
D
46250

Indianapolis, IN

Score: 51/1005 violations
D
46256

Indianapolis, IN

Score: 51/1005 violations
D
46259

Indianapolis, IN

Score: 51/1005 violations
D
46260

Indianapolis, IN

Score: 51/1005 violations
D
46268

Indianapolis, IN

Score: 51/1005 violations
D
46280

Indianapolis, IN

Score: 51/1005 violations
D
46207

Indianapolis, IN

Score: 48/1005 violations
D
46209

Indianapolis, IN

Score: 48/1005 violations
D
46211

Indianapolis, IN

Score: 48/1005 violations
D
46213

Indianapolis, IN

Score: 48/1005 violations
D
46216

Indianapolis, IN

Score: 48/1005 violations
D
46223

Indianapolis, IN

Score: 48/1005 violations
D
46230

Indianapolis, IN

Score: 48/1005 violations
D
46242

Indianapolis, IN

Score: 48/1005 violations
D
46244

Indianapolis, IN

Score: 48/1005 violations
D
46247

Indianapolis, IN

Score: 48/1005 violations
D
46249

Indianapolis, IN

Score: 48/1005 violations
D
46251

Indianapolis, IN

Score: 48/1005 violations
D
46253

Indianapolis, IN

Score: 48/1005 violations
D
46255

Indianapolis, IN

Score: 48/1005 violations
D
46262

Indianapolis, IN

Score: 48/1005 violations
D
46266

Indianapolis, IN

Score: 48/1005 violations
D
46274

Indianapolis, IN

Score: 48/1005 violations
D
46275

Indianapolis, IN

Score: 48/1005 violations
D
46277

Indianapolis, IN

Score: 48/1005 violations
D
46282

Indianapolis, IN

Score: 48/1005 violations
D
46283

Indianapolis, IN

Score: 48/1005 violations
D
46285

Indianapolis, IN

Score: 48/1005 violations
D
46291

Indianapolis, IN

Score: 48/1005 violations
D
46295

Indianapolis, IN

Score: 48/1005 violations
D
46296

Indianapolis, IN

Score: 48/1005 violations
D
46298

Indianapolis, IN

Score: 48/1005 violations
D
46203

Indianapolis, IN

Score: 46/1005 violations
D
46205

Indianapolis, IN

Score: 46/1005 violations
D
46217

Indianapolis, IN

Score: 46/1005 violations
D
46219

Indianapolis, IN

Score: 46/1005 violations
D
46221

Indianapolis, IN

Score: 46/1005 violations
D
46224

Indianapolis, IN

Score: 46/1005 violations
D
46226

Indianapolis, IN

Score: 46/1005 violations
D
46227

Indianapolis, IN

Score: 46/1005 violations
D
46228

Indianapolis, IN

Score: 46/1005 violations
D
46241

Indianapolis, IN

Score: 46/1005 violations
D
46220

Indianapolis, IN

Score: 41/1005 violations
D
46240

Indianapolis, IN

Score: 41/1005 violations

Frequently Asked Questions — Indianapolis Water Quality

Is tap water safe to drink in Indianapolis, IN?+
Tap water in Indianapolis has a grade of D, indicating compliance concerns in recent years. Families with young children or pregnant women should consider using a certified NSF/ANSI 53 water filter for drinking and cooking.
What is the water quality score for Indianapolis?+
The average water quality score across 63 ZIP codes in Indianapolis, IN is 49/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Indianapolis have lead in its tap water?+
27 out of 63 ZIP codes in Indianapolis are rated High or Very High for lead exposure risk. Older homes built before 1986 may have lead service lines or plumbing fixtures. Residents should run their tap for 30 seconds before use and consider a certified NSF/ANSI 53 lead filter.
How do I get the water quality report for Indianapolis?+
Each ZIP code in Indianapolis has a full water quality report on this site — click any ZIP code below. You can also get the annual Consumer Confidence Report (CCR) from your local water utility. The CCR is required to be published every year by July 1 and contains actual contaminant measurements and violation history.
Where does Indianapolis's tap water come from?+
Tap water in Indianapolis, IN primarily comes from surface water. Surface water systems treat water from rivers, lakes, or reservoirs using filtration, sedimentation, and disinfection before it reaches your tap.

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