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City water profile

Muskogee water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Muskogee, Oklahoma.

Median indexed hardness

121PPM

2 indexed ZIPs

Range 118–124 PPM

State comparison
105 PPM below
State hardness rank
#90 of 108
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Muskogee has 2 published ZIP profiles across Muskogee County. The indexed median is 121 PPM, compared with 226 PPM across Oklahoma.

Among the 108 Oklahomacities with an indexed median, Muskogee ranks #90from highest to lowest. Across all 148 state ZIP profiles, available estimates run from 7to 610 PPM.

The 118–124 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 hard1 ZIP
Hard1 ZIP
Very hard0 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
55.5 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Feb 18, 2016 to Dec 5, 2024.

ZIP directory

Water reports in Muskogee

Open a ZIP for site-level provenance and measurements.

ZIP code

74401

Hard

124 PPM

Nearest site
55.5 mi
Confidence
Low

View full ZIP evidence →

ZIP code

74403

Moderately Hard

118 PPM

Nearest site
48 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Muskogee Municipal Authority

PWSID OK1021607

Surface water
System population served
38,310
Last reported
May 13, 2026

A municipal system, in-state city, and served county all agree with this Census 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
Interim Enhanced Surface Water Treatment RuleOK1021607Jan 1, 2026Archived · health-based
TTHMOK1021607Dec 30, 2025Resolved
Total Haloacetic Acids (HAA5)OK1021607Dec 30, 2025Resolved
TTHMOK1021607Jan 1, 2023Archived · health-based
TTHMOK1021607Oct 1, 2022Resolved · health-based
Total Haloacetic Acids (HAA5)OK1021607Oct 1, 2022Resolved · health-based
Total Haloacetic Acids (HAA5)OK1021607Apr 1, 2022Resolved · health-based
Total Haloacetic Acids (HAA5)OK1021607Apr 1, 2021Resolved · health-based
Total Haloacetic Acids (HAA5)OK1021607Jan 1, 2021Resolved · health-based

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 Muskogee

Is the water hard?

The indexed city median is 121 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.