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Water Hardness in Yuma, AZ

Arizona · 2 zip codes · 9 matched water systems

200 PPM
11.7 GPG
Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 200 PPM

Dataset updated March 9, 20269 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
City Of Yuma
AZ0414024
Water source: surface water
Serves: 103,264
USGS environmental estimate: 363 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 9 matched water systems and 2 ZIP codes. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
9 verified treated-water sources
9 matched systems total for this city; 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 in Yuma

These systems are matched to Yuma, AZ. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

9 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.
City Of Yuma
AZ0414024
Hard
200 PPMsurface water103,264 servedVerified — Annual Water Quality Report
Source water: 363 PPM
San Luis City Of
AZ0414005
Hard
200 PPMgroundwater39,705 servedVerified — Annual Water Quality Report
Source water: 518 PPM
Foothills Water And Sewer Llc
AZ0414004
Hard
200 PPMsurface water32,425 servedVerified — Annual Water Quality Report
Source water: 413 PPM
Somerton City Of
AZ0414015
Hard
200 PPMgroundwater14,197 servedVerified — Annual Water Quality Report
Source water: 518 PPM
Usmc Yuma Main System
AZ0414082
Hard
200 PPMsurface water6,324 servedVerified — Annual Water Quality Report
Source water: 773 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Yuma, AZ

What This Means For You

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

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Yuma, AZ.

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Frequently Asked Questions

How hard is the water in Yuma, AZ?

The citywide weighted average water hardness in Yuma, AZ is 200 PPM (11.7 GPG), classified as hard. This is based on 9 matched water systems.

Do I need a water softener in Yuma, AZ?

With a citywide average hardness of 200 PPM, a water softener is recommended for homes in Yuma. Confirm your tap reading before sizing equipment.

Is hard water in Yuma, AZ 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 Yuma, AZ?

Yuma, Arizona is served by 9 matched water systems across 2 zip codes.

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