Where does the water in 78945 come from?

Water for zip code 78945 in La Grange, Texas is provided by 4 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 78945

Q: Is the water hard in La Grange, TX (78945)?

The average water hardness in 78945 is 15 PPM (0.9 GPG), which is classified as soft. No water treatment is typically needed.

Q: Do I need a water softener in 78945?

At 15 PPM, your water is relatively soft. A water softener is generally not necessary, though some homeowners prefer the feel of softened water.

La Grange, Texas · Fayette County

15 PPM

0.9 GPG

Soft

0Soft60120180300+

Estimated — Nearby Data

Dataset updated March 9, 2026Matched to 4 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 4 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

4 estimated sources

This ZIP reading needs local confirmation before equipment sizing or purchase decisions.

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 78945

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.

4 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
Fayette Wsc West TX0750022	groundwater	15 PPM Soft	5,802	Estimated — Nearby Data
City Of La Grange TX0750003	groundwater	15 PPM Soft	4,973	Estimated — Nearby Data
Fayette Wsc East TX0750034	groundwater	15 PPM Soft	1,866	Estimated — Nearby Data
Fayette County Wcid Monument Hill TX0750009	groundwater	15 PPM Soft	575	Estimated — Nearby Data

Fayette Wsc West

TX0750022

Soft

15 PPMgroundwater5,802 servedEstimated — Nearby Data

City Of La Grange

TX0750003

Soft

15 PPMgroundwater4,973 servedEstimated — Nearby Data

Fayette Wsc East

TX0750034

Soft

15 PPMgroundwater1,866 servedEstimated — Nearby Data

Fayette County Wcid Monument Hill

TX0750009

Soft

15 PPMgroundwater575 servedEstimated — Nearby Data

Nearby Zip Codes

78963185 78949185 7893815 7894015 78954185 7895615 78942149 78957163 7896215 789327 78941296 78946149

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 La Grange, TX (78945).

Submit Your Data

Frequently Asked Questions

Is the water hard in La Grange, TX (78945)?

Our estimate for 78945 is 15 PPM (0.9 GPG), but it is based on nearby, county, or state-level data rather than a direct treated tap-water report for this exact location. Confirm with your utility or a home test.

Do I need a water softener in 78945?

Do not size a softener from this estimate alone. Confirm the actual tap-water hardness before choosing treatment equipment.

Is hard water in 78945 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 78945?

Zip code 78945 in La Grange, Texas is served by 4 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.

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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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