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Water Hardness in Pierce, CO

Colorado · 1 zip codes · 11 matched water systems

80 PPM
4.7 GPG
Slightly Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 80 PPM

Dataset updated March 9, 202611 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Greeley City Of
CO0162321
Water source: surface water
Serves: 132,310
USGS environmental estimate: 162 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 11 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
10 verified treated-water sources
11 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 Pierce

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

11 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.
Greeley City Of
CO0162321
Slightly Hard
80 PPMsurface water132,310 servedVerified — Annual Water Quality Report
Source water: 162 PPM
Firestone Town Of
CO0162476
Slightly Hard
80 PPMsurface water27,798 servedVerified — Annual Water Quality Report
Source water: 158 PPM
Johnstown Town Of
CO0162418
Slightly Hard
80 PPMsurface water24,725 servedVerified — Annual Water Quality Report
Source water: 165 PPM
Windsor Town Of
CO0162843
Slightly Hard
80 PPMsurface water23,500 servedVerified — Annual Water Quality Report
Source water: 230 PPM
Evans City Of
CO0162260
Slightly Hard
80 PPMsurface water19,369 servedVerified — Annual Water Quality Report
Source water: 162 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Pierce, CO

8065080

What This Means For You

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

Slightly Hard Water

Your water is slightly hard. You may notice minor spotting on dishes or a slight film on faucets. A water softener is optional but can improve water quality.

Recommended Products

Water Hardness Test Kit
Our PickVarify (150 Strips)Also GreatJNW Direct (150 Strips)
Salt-Free Water Conditioner
Our PickSpringWell Salt-Free Cartridge

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | How 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 Pierce, CO.

Submit Your Data

Frequently Asked Questions

How hard is the water in Pierce, CO?

The citywide weighted average water hardness in Pierce, CO is 80 PPM (4.7 GPG), classified as slightly hard. This is based on 11 matched water systems. The gauge highlights Greeley City Of, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in Pierce, CO?

At 80 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Pierce, CO 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 Pierce, CO?

Pierce, Colorado is served by 11 matched water systems across 1 zip code.

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