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Water Hardness in 63389

Winfield, Missouri · Lincoln County

304 PPM
17.8 GPG
Very Hard
0Soft60120180300+
High Confidence - USGS Monitoring

Dataset updated March 9, 2026Matched to 3 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 3 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
1 USGS-backed source
3 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
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 63389

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.

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.
Lincoln County Pwsd 1
MO6024340
Very Hard
418 PPMgroundwater14,000 servedEstimated - Nearby Data
Troy Pws
MO6010798
Moderately Hard
163 PPMgroundwater12,500 servedHigh Confidence - USGS Monitoring
Winfield Pws
MO6010866
Very Hard
418 PPMgroundwater1,489 servedEstimated - Nearby Data

Nearby Zip Codes

633692986334729862006484633622786336612062013484633433076203630062047441633792886203121163385120

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.

MethodologyData sourcesHow 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 Winfield, MO (63389).

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Frequently Asked Questions

Is the water hard in Winfield, MO (63389)?

The average water hardness in 63389 is 304 PPM (17.8 GPG), which is classified as very hard.

Do I need a water softener in 63389?

With hardness of 304 PPM, a water softener is recommended for homes in 63389.

Is hard water in 63389 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 63389?

Zip code 63389 in Winfield, Missouri is served by 3 water systems.

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