Is tap water safe in Greeley?

EPA SDWIS shows no active health-based violation in this profile's reporting window. That is not the same as proving every contaminant is absent, and federal data can lag state and utility records.

How hard is the water in Greeley, CO?

Nearby USGS observations produce an estimate of 14.1 ppm (0.8 grains per gallon), classified as soft. This is not a tap measurement.

Do I need a water softener in ZIP code 80634?

There is no high-hardness trigger in this profile. Confirm conditions with an at-home hardness test before purchasing equipment.

City water profile

Greeley water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Greeley, Colorado.

Median indexed hardness

14PPM

2 indexed ZIPs

Range 13.7–14.1 PPM

State comparison: 45 PPM below
State hardness rank: #58 of 58
Matched utilities: 1
Active health records: 0

City summary

What the indexed records say

Greeley has 2 published ZIP profiles across Weld County. The indexed median is 14 PPM, compared with 59 PPM across Colorado.

Among the 58 Coloradocities with an indexed median, Greeley ranks #58from highest to lowest. Across all 161 state ZIP profiles, available estimates run from 13.7to 829 PPM.

The 13.7–14.1 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft2 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard0 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 6.5 miles
Profiles with evidence: 2/2

Confidence labels

High: 0Moderate: 2Low: 0

Observation window: Jan 5, 2016 to Jun 2, 2026.

ZIP directory

Water reports in Greeley

Open a ZIP for site-level provenance and measurements.

ZIP code

80631

Soft

13.7 PPM

Nearest site: 6.5 mi
Confidence: Moderate

View full ZIP evidence →

ZIP code

80634

Soft

14.1 PPM

Nearest site: 3.6 mi
Confidence: Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Greeley City Of

PWSID CO0162321

Surface water

System population served: 132,310
Last reported: Jun 17, 2026

A municipal system, in-state city, and served county all agree with this Census ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

Record	System	Period	Status
Chlorite	CO0162321	Jul 1, 2025	Resolved
Lead and Copper Rule	CO0162321	Oct 1, 2024	Resolved
Chlorite	CO0162321	Jun 1, 2023	Resolved
Chlorite	CO0162321	May 1, 2021	Resolved
Chlorine dioxide	CO0162321	May 1, 2021	Resolved

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Colorado communities

Dacono

Weld County

32 PPM median

Evans

Weld County

14 PPM median

Loveland

Larimer County

17 PPM median

Berthoud

Larimer County

30 PPM median

Steamboat Springs

Routt County

33 PPM median

Longmont

Boulder County

35 PPM median

Search all 58 Colorado cities →

Questions people ask

About water in Greeley

Is the water hard?

The indexed city median is 14 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.