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Water Hardness in 39402

Hattiesburg, Mississippi · Lamar County

30 PPM
1.8 GPG
Soft
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 6 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 6 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 verified treated-water sources
6 matched systems total for this ZIP; 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 Serving 39402

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.

6 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 Hattiesburg
MS0180008
Soft
30 PPMgroundwater43,449 servedVerified — Annual Water Quality Report
Source water: 3 PPM
West Lamar Water Assn #1
MS0370011
Soft
30 PPMgroundwater18,491 servedVerified — Annual Water Quality Report
Source water: 11 PPM
North Lamar Water Association
MS0370006
Soft
30 PPMgroundwater12,778 servedVerified — Annual Water Quality Report
Source water: 11 PPM
Lamar Park Water & Sewage Assn
MS0370004
Soft
30 PPMgroundwater7,714 servedVerified — Annual Water Quality Report
Source water: 11 PPM
Arnold Line Water Association
MS0370001
Soft
30 PPMgroundwater6,600 servedVerified — Annual Water Quality Report
Source water: 11 PPM
Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

39482293940130394652339459113947526394797394215394379394623394291339464113945534

What This Means For You

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

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft 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 Hattiesburg, MS (39402).

Submit Your Data

Frequently Asked Questions

Is the water hard in Hattiesburg, MS (39402)?

The average water hardness in 39402 is 30 PPM (1.8 GPG), which is classified as soft.

Do I need a water softener in 39402?

At 30 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 39402 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 39402?

Zip code 39402 in Hattiesburg, Mississippi is served by 6 water systems.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

10 min read

How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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