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Water Hardness in Kerrville, TX

Texas · 1 zip codes · 12 matched water systems

295 PPM
17.3 GPG
Very Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 295 PPM

Dataset updated March 9, 202612 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
City Of Kerrville
TX1330001
Water source: surface water
Serves: 23,489
USGS environmental estimate: 303 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 12 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
12 verified treated-water sources
12 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 Kerrville

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

12 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 Kerrville
TX1330001
Very Hard
295 PPMsurface water23,489 servedVerified — Annual Water Quality Report
Source water: 303 PPM
Kerrville Va Hospital
TX1330095
Very Hard
295 PPMgroundwater1,000 servedVerified — Annual Water Quality Report
Source water: 303 PPM
Southern Hills
TX1330128
Very Hard
295 PPMgroundwater975 servedVerified — Annual Water Quality Report
Source water: 303 PPM
Woods Wsc
TX1330085
Very Hard
295 PPMgroundwater315 servedVerified — Annual Water Quality Report
Source water: 303 PPM
Kerrville Rv Park And Cabins
TX1330170
Very Hard
295 PPMgroundwater312 servedVerified — Annual Water Quality Report
Source water: 303 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Kerrville, TX

What This Means For You

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

Very Hard Water - Treatment Strongly Recommended

Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | 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 Kerrville, TX.

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Frequently Asked Questions

How hard is the water in Kerrville, TX?

The citywide weighted average water hardness in Kerrville, TX is 295 PPM (17.3 GPG), classified as very hard. This is based on 12 matched water systems.

Do I need a water softener in Kerrville, TX?

With a citywide average hardness of 295 PPM, a water softener is recommended for homes in Kerrville. Confirm your tap reading before sizing equipment.

Is hard water in Kerrville, 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 Kerrville, TX?

Kerrville, Texas is served by 12 matched water systems across 1 zip code.

Learn More About Your Water