Where does the water in 75835 come from?

Water for zip code 75835 in Austonio, Texas is provided by 5 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 75835

Austonio, Texas · Houston County

62 PPM

3.6 GPG

Slightly Hard

0Soft60120180300+

High Confidence - USGS Monitoring

Dataset updated March 9, 2026Matched to 5 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 5 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

1 USGS-backed source

5 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 75835

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.

5 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.

Water System	Source	Hardness	Pop. Served	Data Source
The Consolidated Wsc Rural System TX1130033	groundwater	8 PPM Soft	10,689	Estimated - Nearby Data
City Of Crockett TX1130001	surface water	147 PPM Moderately Hard	7,755	Estimated - Nearby Data
The Consolidated Wsc Central System TX1130031	groundwater	8 PPM Soft	3,878	Estimated - Nearby Data
Tdcj Wainwright Unit TX1130004	groundwater	95 PPM Slightly Hard	3,148	High Confidence - USGS Monitoring
Houston County Wcid 1 TX1130010	surface water	147 PPM Moderately Hard	48	Estimated - Nearby Data

The Consolidated Wsc Rural System

TX1130033

Soft

8 PPMgroundwater10,689 servedEstimated - Nearby Data

City Of Crockett

TX1130001

Moderately Hard

147 PPMsurface water7,755 servedEstimated - Nearby Data

The Consolidated Wsc Central System

TX1130031

Soft

8 PPMgroundwater3,878 servedEstimated - Nearby Data

Tdcj Wainwright Unit

TX1130004

Slightly Hard

95 PPMgroundwater3,148 servedHigh Confidence - USGS Monitoring

Houston County Wcid 1

TX1130010

Moderately Hard

147 PPMsurface water48 servedEstimated - Nearby Data

Nearby Zip Codes

7584928 7585136 75856148 7584426 7583329 7585828 7584727 7585290 7583948 75862146 758508 75845190

What This Means For You

Use this ZIP reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.

Methodology Data sources 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 Austonio, TX (75835).

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Frequently Asked Questions

Is the water hard in Austonio, TX (75835)?

The average water hardness in 75835 is 62 PPM (3.6 GPG), which is classified as slightly hard.

Do I need a water softener in 75835?

At 62 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 75835 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 75835?

Zip code 75835 in Austonio, Texas is served by 5 water systems.