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Water Hardness in 64465

Lathrop, Missouri · Clinton County

261 PPM
15.3 GPG
Very Hard
0Soft60120180300+
Verified - Annual Water Quality Report

Dataset updated March 9, 2026Matched to 5 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 5 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 verified treated-water source
5 matched systems 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 64465

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.

5 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.
Kansas City Pws
MO1010415
Very Hard
260 PPMsurface water513,800 servedVerified - Annual Water Quality Report
Source water: 243 PPM
Cameron Pws
MO1010131
Very Hard
272 PPMsurface water11,963 servedEstimated - Nearby Data
Clinton Co Pwsd 4 Sys 1
MO1024156
Very Hard
323 PPMsurface water4,968 servedHigh Confidence - USGS Monitoring
Lathrop Pws
MO1010453
Very Hard
323 PPMsurface water2,945 servedHigh Confidence - USGS Monitoring
Clinton County Pwsd 4 Sys 2
MO1024154
Very Hard
323 PPMsurface water750 servedHigh Confidence - USGS Monitoring

Nearby Zip Codes

644932606404826064062303644772606467126264060260644292606465032364492260644742016402426064084260

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 Lathrop, MO (64465).

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Frequently Asked Questions

Is the water hard in Lathrop, MO (64465)?

The average water hardness in 64465 is 261 PPM (15.3 GPG), which is classified as very hard.

Do I need a water softener in 64465?

With hardness of 261 PPM, a water softener is recommended for homes in 64465.

Is hard water in 64465 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 64465?

Zip code 64465 in Lathrop, Missouri is served by 5 water systems.

Learn More About Your Water

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Well Water Hardness: Why It's Usually Hard & How to Treat It

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