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City water profile

Jackson water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Jackson, Michigan.

Median indexed hardness

237PPM

2 indexed ZIPs

Range 234–240 PPM

State comparison
46 PPM below
State hardness rank
#253 of 374
Matched utilities
5
Active health records
0

City summary

What the indexed records say

Jackson has 2 published ZIP profiles across Jackson County. The indexed median is 237 PPM, compared with 283 PPM across Michigan.

Among the 374 Michigancities with an indexed median, Jackson ranks #253from highest to lowest. Across all 512 state ZIP profiles, available estimates run from 41.3to 459.5 PPM.

The 234–240 PPM range shows how much the available ZIP estimates vary within the city label. 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 hard2 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
64 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Jan 7, 2016 to Jun 9, 2026.

ZIP directory

Water reports in Jackson

Open a ZIP for site-level provenance and measurements.

ZIP code

49202

Very Hard

240 PPM

Nearest site
64 mi
Confidence
Low

View full ZIP evidence →

ZIP code

49203

Very Hard

234 PPM

Nearest site
61.1 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Jackson

PWSID MI0003470

Groundwater influenced by surface water
System population served
33,165
Last reported
Jun 23, 2026

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

Summit Township

PWSID MI0006450

Groundwater
System population served
25,355
Last reported
Jun 23, 2026

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

Blackman Township

PWSID MI0000740

Groundwater influenced by surface water
System population served
21,222
Last reported
Jun 23, 2026

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

Willows On Twin Ponds

PWSID MI0001658

Groundwater
System population served
147
Last reported
Jun 23, 2026

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

Arbor Ridge Condominiums

PWSID MI0000236

Groundwater
System population served
58
Last reported
Jun 23, 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
LEAD AND COPPER RULE REVISIONSMI0001658Oct 17, 2024Resolved · health-based
LEAD AND COPPER RULE REVISIONSMI0001658Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSMI0000236Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSMI0000236Oct 17, 2024Resolved · health-based
Revised Total Coliform RuleMI0001658Jul 11, 2022Resolved
TTHMMI0003470Apr 1, 2022Resolved
cis-1,2-DichloroethyleneMI0003470Apr 1, 2022Resolved
Xylenes, TotalMI0003470Apr 1, 2022Resolved
o-DichlorobenzeneMI0003470Apr 1, 2022Resolved
p-DichlorobenzeneMI0003470Apr 1, 2022Resolved

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 Jackson

Is the water hard?

The indexed city median is 237 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.