CITY REPORT IN

Columbus, IN: 11 Violations - Home Safety 56/100

3 ZIP codes · 6 water systems · Updated

ZipCheckup grade for Columbus: C.

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

Documented records place Columbus, IN in the middle grade tier.

How Columbus Compares

Columbus56/100
Indiana avg64/100
National avg73/100

Data: EPA SDWIS

3
ZIP Codes
6
Water Systems
2
ZIPs Linked to Systems with Violations
C · 56
Avg Safety Score
Zone 1
County Radon Potential (High)
$234K
Median Home Value
$550
Est. Remediation (0.2% of home value)

Key Facts for Columbus Residents

  • Your city's water systems recorded 11 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0035 mg/L.
  • Homes built before 1986: 57% - older plumbing may contain lead solder.
  • Estimated remediation: $550 per household.
  • Health risk index (ZipCheckup composite of CDC data): 13.59.

Columbus's Water Providers

Counting every public water system linked to Columbus, IN in federal data gives 6. The list below keeps the 3 largest by reported population served, a figure that covers each system's whole service area rather than the city alone. A household's own supplier is named on its water bill.

Overview

We track home safety data for 3 ZIP codes in Columbus, Indiana, covering 6 community water systems serving approximately 73,708 people. The EPA snapshots used for this build directly map water systems to 2 of 3 ZIP codes.

2 of 2 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Columbus: C (56/100)

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

Columbus water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0035 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 2 ZIP codes with known status exceed the EPA lead action level

Radon Risk

3 of 3 ZIP records with known zones are 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
Revised Total Coliform Rule Microbiological 11 2
Consumer Confidence Rule Reporting 6 2
Lead and Copper Rule Treatment Technique 3 2
Haloacetic Acids (HAA5) Disinfection Byproducts 2 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
47201 D 10 0 Columbus Municipal Utility
47203 C 4 0 Columbus Municipal Utility

All ZIP Codes in Columbus

Data Sources

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

Columbus Community Health Snapshot

10.6%
Asthma (US: 9.8%)
12.4%
Diabetes (US: 10.4%)
17.2%
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 10.6% ↑
Diabetes 12.4% ↑
Mental Health 17.2% ↑

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

What's in Columbus's Water?

Revised Total Coliform Rule 11 violations
Microbiological
Indicates possible bacterial contamination
Consumer Confidence Rule 6 violations
Reporting
Lead and Copper Rule 3 violations
Treatment Technique
Developmental delays in children, kidney damage

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

Columbus Infrastructure Age

1980
Median Build Year
57%
Built Before 1986
37%
Built Before 1970
Copper
Likely Pipe Material

With 57% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Lead can reach tap water from service lines, solder and brass fittings inside a building, which is why housing age draws attention in Columbus, where the median build year is 1980.

1980
Median Year Built
57%
Pre-1986 (lead solder era; lead paint banned 1978)
37%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (37%) 1970–1986 (20%) Post-1986 (43%)

Over half of homes in Columbus were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Columbus

Because the median home value in Columbus is large relative to the estimated cost of remediation, the ratio between them stays at or below 1%; that is a statement about two area-level numbers, not a quote for a particular house or a judgment about what an owner can pay.

Median Home Value
$234,300
Est. Remediation
$550
Remediation as % of home value 0.2%

Estimated remediation costs in Columbus can be compared with local home values. The $350–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 31% above the Indiana average.

Columbus: Lead Risk & Vulnerable Populations

57%
Homes Built Before 1986
0.0035
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.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

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

Columbus: NFIP Claim Records and Water-Quality Context

402
Total FEMA Flood Claims
$37,667
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Columbus contains 402 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $37,667. Among ZIP codes with claim records, 100% 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 $550 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 Columbus

  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 Revised Total Coliform Rule, listed in the water-quality records for Columbus: 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. With 57% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

What does the Home Safety Score mean for Columbus, IN?
Columbus has an average Home Safety Score of 56/100 (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. 11 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 Columbus?
EPA records list 11 EPA violations for Columbus water systems. These water-system violations are shown for 3 mapped ZIP codes.
Does Columbus water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Columbus is 0.0035 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 Columbus compare to Indiana average?
Columbus has an average Home Safety Score of 56/100, which is below the Indiana state average of 64/100 for the same model series.
How many water systems serve Columbus?
Our records map 6 water systems to 3 ZIP codes in Columbus. The related population figure in our data is approximately 73,708 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Columbus?
Estimated remediation cost per household in Columbus: $550; modeled range $350 to $800. 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). Columbus, IN: 11 Violations - Home Safety 56/100. https://zipcheckup.com/cities/in/columbus/
BibTeX
@misc{zipcheckup-cities-in-columbus,
  author = {{ZipCheckup}},
  title  = {{Columbus, IN: 11 Violations - Home Safety 56/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/in/columbus/}
}

Page version: October 2026.

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