WH

Water Hardness in Coffeyville, KS

Kansas · 1 zip codes · 3 matched water systems

178 PPM
10.4 GPG
Moderately Hard
0Soft60120180300+
Estimated — Nearby Data

Dataset updated March 9, 20263 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 3 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
3 estimated sources
This city reading needs local confirmation before equipment sizing or purchase decisions.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems in Coffeyville

These systems are matched to Coffeyville, KS. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

3 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Coffeyville, City Of
KS2012513
Moderately Hard
178 PPMsurface water8,847 servedEstimated — Nearby Data
Montgomery Co Rwd 2C A
KS2012526
Moderately Hard
178 PPMsurface water1,113 servedEstimated — Nearby Data
Montgomery Co Rwd 14
KS2012525
Moderately Hard
178 PPMsurface water330 servedEstimated — Nearby Data

Zip Codes in Coffeyville, KS

What This Means For You

Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Coffeyville, KS.

Submit Your Data

Frequently Asked Questions

How hard is the water in Coffeyville, KS?

The citywide weighted average water hardness in Coffeyville, KS is 178 PPM (10.4 GPG), classified as moderately hard. This is based on 3 matched water systems.

Do I need a water softener in Coffeyville, KS?

With a citywide average hardness of 178 PPM, a water softener is worth considering for homes in Coffeyville. Confirm your tap reading before sizing equipment.

Is hard water in Coffeyville, KS safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve Coffeyville, KS?

Coffeyville, Kansas is served by 3 matched water systems across 1 zip code.

Learn More About Your Water