Where does the water in 66754 come from?

Water for zip code 66754 in Mapleton, Kansas is provided by 1 water system. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 66754

Mapleton, Kansas · Bourbon County

200 PPM

11.7 GPG

Hard

0Soft60120180300+

Verified - Annual Water Quality Report

Dataset updated March 9, 2026Matched to 1 water systemTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 1 matched water system. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis

1 verified treated-water source

1 matched system total for this ZIP; treated-water reports are prioritized when available.

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 Serving 66754

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

1 water system

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.

Water System	Source	Hardness	Pop. Served	Data Source
Water District 1 Of Johnson Co KS2009110	surface water	200 PPM Hard USGS estimate: 231 PPM	482,000	Verified - Annual Water Quality Report

Water District 1 Of Johnson Co

KS2009110

Hard

200 PPMsurface water482,000 servedVerified - Annual Water Quality Report

Source water: 231 PPM

Nearby Zip Codes

66010211 66738232 66716211 66769200 66056216 66767232 66779211 66701232 66039211 66755211 66014200 66075232

What This Means For You

Use this ZIP reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.

Methodology Data sources How to test your water

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 Mapleton, KS (66754).

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Frequently Asked Questions

Is the water hard in Mapleton, KS (66754)?

The average water hardness in 66754 is 200 PPM (11.7 GPG), which is classified as hard.

Do I need a water softener in 66754?

With hardness of 200 PPM, a water softener is recommended for homes in 66754.

Is hard water in 66754 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 66754?

Zip code 66754 in Mapleton, Kansas is served by 1 water system.