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Water Hardness in Longview, TX

Texas · 5 zip codes · 7 matched water systems

63 PPM
3.7 GPG
Slightly Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 63 PPM

Dataset updated March 9, 20267 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
City Of Longview
TX0920004
Water source: surface water
Serves: 83,236
USGS environmental estimate: 24 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 7 matched water systems and 5 ZIP codes. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
7 verified treated-water sources
7 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 Longview

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

7 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 Longview
TX0920004
Slightly Hard
63 PPMsurface water83,236 servedVerified — Annual Water Quality Report
Source water: 24 PPM
City Of Kilgore
TX0920003
Slightly Hard
63 PPMsurface water14,948 servedVerified — Annual Water Quality Report
Source water: 24 PPM
Tryon Road Sud
TX0920021
Slightly Hard
63 PPMsurface water10,791 servedVerified — Annual Water Quality Report
Source water: 24 PPM
Elderville Wsc
TX0920019
Slightly Hard
63 PPMsurface water9,021 servedVerified — Annual Water Quality Report
Source water: 24 PPM
West Gregg Sud
TX0920022
Slightly Hard
63 PPMgroundwater5,127 servedVerified — Annual Water Quality Report
Source water: 24 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Longview, TX

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 Longview, TX.

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Frequently Asked Questions

How hard is the water in Longview, TX?

The citywide weighted average water hardness in Longview, TX is 63 PPM (3.7 GPG), classified as slightly hard. This is based on 7 matched water systems.

Do I need a water softener in Longview, TX?

At 63 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Longview, TX 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 Longview, TX?

Longview, Texas is served by 7 matched water systems across 5 zip codes.

Learn More About Your Water