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Water Hardness in 65355

Warsaw, Missouri · Benton County

264 PPM
15.4 GPG
Very Hard
0Soft60120180300+
Estimated — Nearby Data

Dataset updated March 9, 2026Matched to 16 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 16 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
16 estimated sources
This ZIP reading needs local confirmation before equipment sizing or purchase decisions.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 65355

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.

16 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.
Warsaw Pws
MO3010835
Very Hard
264 PPMgroundwater2,236 servedEstimated — Nearby Data
Sterett Creek Village
MO3252288
Very Hard
264 PPMgroundwater505 servedEstimated — Nearby Data
Winegars Teal Bend Subd
MO3036121
Very Hard
264 PPMgroundwater400 servedEstimated — Nearby Data
Sycamore Valley Subd
MO3036127
Very Hard
264 PPMgroundwater245 servedEstimated — Nearby Data
Keithley Beach Subd
MO3036166
Very Hard
264 PPMgroundwater240 servedEstimated — Nearby Data
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

What This Means For You

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

Very Hard Water - Treatment Strongly Recommended

Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | 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 Warsaw, MO (65355).

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Frequently Asked Questions

Is the water hard in Warsaw, MO (65355)?

Our estimate for 65355 is 264 PPM (15.4 GPG), but it is based on nearby, county, or state-level data rather than a direct treated tap-water report for this exact location. Confirm with your utility or a home test.

Do I need a water softener in 65355?

Do not size a softener from this estimate alone. Confirm the actual tap-water hardness before choosing treatment equipment.

Is hard water in 65355 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 65355?

Zip code 65355 in Warsaw, Missouri is served by 16 water systems.

Learn More About Your Water