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Water Hardness in Lafayette, LA

Louisiana · 5 zip codes · 21 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, 202621 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Lafayette Utilities Water System
LA1055017
Water source: groundwater
Serves: 169,389
USGS environmental estimate: 111 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 21 matched water systems and 5 ZIP codes. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
21 verified treated-water sources
21 matched systems total for this city; treated-water reports are prioritized when available.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 Lafayette

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

21 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.
Lafayette Utilities Water System
LA1055017
Slightly Hard
80 PPMgroundwater169,389 servedVerified — Annual Water Quality Report
Source water: 111 PPM
Lpwdn North Region
LA1055191
Slightly Hard
80 PPMgroundwater16,833 servedVerified — Annual Water Quality Report
Source water: 111 PPM
Lpwd South
LA1055156
Slightly Hard
80 PPMgroundwater15,132 servedVerified — Annual Water Quality Report
Source water: 219 PPM
Milton Purchase Water System
LA1055196
Slightly Hard
80 PPMgroundwater11,430 servedVerified — Annual Water Quality Report
Source water: 125 PPM
City Of Carencro Water System
LA1055005
Slightly Hard
80 PPMgroundwater10,485 servedVerified — Annual Water Quality Report
Source water: 111 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Lafayette, LA

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

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 Lafayette, LA.

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Frequently Asked Questions

How hard is the water in Lafayette, LA?

The citywide weighted average water hardness in Lafayette, LA is 80 PPM (4.7 GPG), classified as slightly hard. This is based on 21 matched water systems.

Do I need a water softener in Lafayette, LA?

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

Is hard water in Lafayette, LA 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 Lafayette, LA?

Lafayette, Louisiana is served by 21 matched water systems across 5 zip codes.

Learn More About Your Water