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City water profile

Vincennes water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Vincennes, Indiana.

Median indexed hardness

330PPM

One indexed ZIP

Range 330–330 PPM

State comparison
17 PPM above
State hardness rank
#157 of 386
Matched utilities
2
Active health records
0

City summary

What the indexed records say

Vincennes has 1 published ZIP profile across Knox County. The indexed median is 330 PPM, compared with 313 PPM across Indiana.

Among the 386 Indianacities with an indexed median, Vincennes ranks #157from highest to lowest. Across all 472 state ZIP profiles, available estimates run from 132to 371 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard1 ZIP

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
37.9 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Feb 23, 2016 to Aug 14, 2023.

ZIP directory

Water reports in Vincennes

Open a ZIP for site-level provenance and measurements.

ZIP code

47591

Very Hard

330 PPM

Nearest site
37.9 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Vincennes Water Department

PWSID IN5242014

Groundwater
System population served
18,701
Last reported
Jun 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Knox County Water, Inc.

PWSID IN5242018

Groundwater
System population served
3,525
Last reported
Jun 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Consumer Confidence RuleIN5242014Jul 1, 2024Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Vincennes

Is the water hard?

The indexed city median is 330 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.