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Water Hardness in 73754

Lahoma, Oklahoma · Garfield County

207 PPM
12.1 GPG
Hard
0Soft60120180300+
Verified - Annual Water Quality Report

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
2 verified treated-water sources
3 matched systems total for this ZIP; treated-water reports are prioritized when available.
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 73754

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.
Enid
OK2002412
Hard
200 PPMgroundwater49,347 servedVerified - Annual Water Quality Report
Source water: 531 PPM
Vance Afb
OK3002402
Hard
200 PPMgroundwater3,231 servedVerified - Annual Water Quality Report
Source water: 531 PPM
Lahoma Pwa
OK2002417
Very Hard
849 PPMgroundwater577 servedEstimated - Nearby Data

Nearby Zip Codes

737608497373520573727200737032007373984973768849737188497377321173743201737418497370120073747154

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 Lahoma, OK (73754).

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Frequently Asked Questions

Is the water hard in Lahoma, OK (73754)?

The average water hardness in 73754 is 207 PPM (12.1 GPG), which is classified as hard.

Do I need a water softener in 73754?

With hardness of 207 PPM, a water softener is recommended for homes in 73754.

Is hard water in 73754 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 73754?

Zip code 73754 in Lahoma, Oklahoma is served by 3 water systems.

Learn More About Your Water

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Water Hardness Scale: PPM and GPG Chart

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

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