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Water Hardness in Pueblo, CO

Colorado · 6 zip codes · 11 matched water systems

120 PPM
7 GPG
Moderately Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 120 PPM

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

System used for this reading
Pueblo Board Of Ww
CO0151500
Water source: surface water
Serves: 114,070
USGS environmental estimate: 116 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 11 matched water systems and 6 ZIP codes. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
11 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 Pueblo

These systems are matched to Pueblo, 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.
Pueblo Board Of Ww
CO0151500
Moderately Hard
120 PPMsurface water114,070 servedVerified — Annual Water Quality Report
Source water: 116 PPM
Pueblo West Md
CO0151650
Moderately Hard
120 PPMsurface water30,000 servedVerified — Annual Water Quality Report
Source water: 407 PPM
St Charles Mesa Wd
CO0151750
Moderately Hard
120 PPMsurface water9,690 servedVerified — Annual Water Quality Report
Source water: 397 PPM
Colorado City Md
CO0151200
Moderately Hard
120 PPMsurface water2,755 servedVerified — Annual Water Quality Report
Source water: 116 PPM
Avondale Wsd
CO0151050
Moderately Hard
120 PPMgroundwater1,615 servedVerified — Annual Water Quality Report
Source water: 116 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Pueblo, CO

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 Pueblo, CO.

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Frequently Asked Questions

How hard is the water in Pueblo, CO?

The citywide weighted average water hardness in Pueblo, CO is 120 PPM (7 GPG), classified as moderately hard. This is based on 11 matched water systems.

Do I need a water softener in Pueblo, CO?

With a citywide average hardness of 120 PPM, a water softener is worth considering for homes in Pueblo. Confirm your tap reading before sizing equipment.

Is hard water in Pueblo, 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 Pueblo, CO?

Pueblo, Colorado is served by 11 matched water systems across 6 zip codes.

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