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Water Hardness in 70577

Port Barre, Louisiana · St. Landry Parish County

115 PPM
6.7 GPG
Slightly Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 8 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 8 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
6 USGS-backed sources
8 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
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 Serving 70577

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.

8 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.
City Of Opelousas Water System
LA1097010
Slightly Hard
115 PPMgroundwater20,388 servedEstimated — County Avg
Eunice Water System (Lawco)
LA1097022
Slightly Hard
115 PPMgroundwater15,393 servedEstimated — County Avg
Town Of Leonville Water System
LA1097005
Slightly Hard
115 PPMgroundwater9,552 servedHigh Confidence — USGS Monitoring
Town Of Port Barre Water System
LA1097013
Slightly Hard
115 PPMgroundwater3,828 servedHigh Confidence — USGS Monitoring
St Landry Wwd 3 Port Barre Area D
LA1097037
Slightly Hard
115 PPMgroundwater1,860 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

What This Means For You

Recommendations are based on the displayed ZIP 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 Port Barre, LA (70577).

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Frequently Asked Questions

Is the water hard in Port Barre, LA (70577)?

The average water hardness in 70577 is 115 PPM (6.7 GPG), which is classified as slightly hard.

Do I need a water softener in 70577?

At 115 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 70577 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 70577?

Zip code 70577 in Port Barre, Louisiana is served by 8 water systems.

Learn More About Your Water