CITY REPORT IN HEALTH VIOLATIONS: 2

Zionsville, IN: 2 Health Violations - Home Safety 64/100

1 ZIP code · 4 water systems · Updated

ZipCheckup grade for Zionsville: C.

A mixed picture - some signals here are worth your attention.

Zionsville lands in the middle of the grade scale in IN; EPA records can differ from one service area to the next.

How Zionsville Compares

Zionsville64/100
Indiana avg64/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
4
Water Systems
1
ZIPs Linked to Systems with Violations
C · 64
Avg Safety Score
Zone 1
County Radon Potential (High)
$535K
Median Home Value
$800
Est. Remediation (0.1% of home value)

Zionsville Water: The Quick Version

  • Your city's water systems recorded 5 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0047 mg/L.
  • Homes built before 1986: 28% - older plumbing may contain lead solder.
  • Estimated remediation: $800 per household.
  • Health risk index (ZipCheckup composite of CDC data): 11.76.

Water Systems Serving Zionsville

When a city is linked to 4 water systems, as Zionsville, IN is in federal records, water in one neighborhood may come from a different system than in another. The 3 systems with the largest reported populations are shown below, and their compliance records are kept separately, so a violation logged for one does not describe the others.

Overview

We track home safety data for 1 ZIP code in Zionsville, Indiana (population ~35,378), covering 4 community water systems serving approximately 1,047,645 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 2 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Zionsville: C (64/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Zionsville water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0047 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 1.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Consumer Confidence Rule Reporting 4 1
Groundwater Rule Treatment Technique 4 1
Revised Total Coliform Rule Microbiological 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
46077 C 5 2 Citizens Water - Indianapolis

All ZIP Codes in Zionsville

  • 46077 [C] - 5 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Zionsville

10.4%
Asthma (US: 9.8%)
10.5%
Diabetes (US: 10.4%)
15%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.4% ↑
Diabetes 10.5% ↑
Mental Health 15% ↑

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Zionsville

Consumer Confidence Rule 4 violations
Reporting
Groundwater Rule 4 violations
Treatment Technique
Revised Total Coliform Rule 2 violations
Microbiological
Indicates possible bacterial contamination

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Zionsville's Housing Stock?

2009
Median Build Year
28%
Built Before 1986
13%
Built Before 1970
PEX or Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

For Zionsville, the median build year stands at 2009; the figures below show the share of homes from each era.

2009
Median Year Built
28%
Pre-1986 (lead solder era; lead paint banned 1978)
13%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (13%) 1970–1986 (15%) Post-1986 (72%)

Most homes in Zionsville were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Zionsville: Remediation Cost in Perspective

The remediation-to-value ratio for Zionsville sits at the bottom of the scale.

Median Home Value
$534,600
Est. Remediation
$800
Remediation as % of home value 0.1%

Estimated remediation costs in Zionsville can be compared with local home values. The $450–$1,400 estimated range can be set against the median property value; actual costs vary by home. Home values are 199% above the Indiana average.

Protecting Children from Lead in Zionsville

28%
Homes Built Before 1986
0.0047
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

For families with young children in Zionsville, two area figures are available: pre-1986 construction at about 28%, and a mean of the ZIP codes' 90th-percentile lead results under 0.010 mg/L. Testing water from the tap a child drinks from gives a home-specific result.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Zionsville

25
Total FEMA Flood Claims
$13,157
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Zionsville contains 25 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $13,157. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $800 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Zionsville

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. For Consumer Confidence Rule, listed in the water-quality records for Zionsville: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
  3. Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.

Frequently Asked Questions

What does the Home Safety Score mean for Zionsville, IN?
Zionsville has an average Home Safety Score of 64/100 (Grade C) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 5 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Zionsville?
EPA records list 5 EPA violations, including 2 health-based violations for Zionsville water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Zionsville water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Zionsville is 0.0047 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Zionsville compare to Indiana average?
Zionsville has an average Home Safety Score of 64/100, which is at or above the Indiana state average of 64/100 for the same model series.
How many water systems serve Zionsville?
Our records map 4 water systems to 1 ZIP code in Zionsville. The related population figure in our data is approximately 35,378 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Zionsville?
Estimated remediation cost per household in Zionsville: $800; modeled range $450 to $1,400. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Zionsville, IN: 2 Health Violations - Home Safety 64/100. https://zipcheckup.com/cities/in/zionsville/
BibTeX
@misc{zipcheckup-cities-in-zionsville,
  author = {{ZipCheckup}},
  title  = {{Zionsville, IN: 2 Health Violations - Home Safety 64/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/in/zionsville/}
}

Page version: October 2026.

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