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Water Hardness in 97225

Cedar Hills, Oregon · Washington County

13 PPM
0.7 GPG
Soft
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 12 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 12 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
10 verified treated-water sources
12 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 97225

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.

12 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.
Tualatin Valley Water District
OR4100665
Soft
12 PPMsurface water224,600 servedVerified — Annual Water Quality Report
Source water: 69 PPM
Hillsboro, City Of
OR4101513
Soft
12 PPMsurface water92,632 servedVerified — Annual Water Quality Report
Source water: 93 PPM
Beaverton, City Of
OR4100081
Soft
12 PPMsurface water88,045 servedVerified — Annual Water Quality Report
Source water: 69 PPM
Tigard, City Of
OR4100878
Soft
12 PPMsurface water62,500 servedVerified — Annual Water Quality Report
Source water: 69 PPM
Tualatin, City Of
OR4100906
Soft
12 PPMsurface water28,106 servedVerified — Annual Water Quality Report
Source water: 123 PPM
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

970051297221129700812972101297205129722912972231297201129700612972091297219129720412

What This Means For You

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

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft 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 Cedar Hills, OR (97225).

Submit Your Data

Frequently Asked Questions

Is the water hard in Cedar Hills, OR (97225)?

The average water hardness in 97225 is 13 PPM (0.7 GPG), which is classified as soft.

Do I need a water softener in 97225?

At 13 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 97225 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 97225?

Zip code 97225 in Cedar Hills, Oregon is served by 12 water systems.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

10 min read

How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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