The water report
How hard is Georgetown's water?
No guessing, no scare tactics — just the numbers, sourced to the utilities that publish them, so you can decide what your home actually needs.
How hard is the water in Georgetown and Williamson County?
Very hard — about 271 ppm, or 15.8 grains per gallon. The City of Round Rock's 2024 water quality report, which covers much of the county's regional supply, lists hardness from 184 to 358 ppm (10.7–20.9 gpg). Anything above ~10.5 gpg is "very hard," so the whole county sits in that band, and wells north and west of Georgetown can run harder still.
Hardness by area
The numbers, with sources
| Area / supply | Hardness | Source |
|---|---|---|
| Round Rock (regional supply) | 184–358 ppm · 10.7–20.9 gpg · avg ≈271 | City of Round Rock 2024 CCR |
| Georgetown | ≈271 ppm · 15.8 gpg (very hard) | Regional treated supply / City of Georgetown |
| Cedar Park / Leander / Hutto | ~15 gpg (hard) regional | Regional treated supply |
| Liberty Hill / Jarrell / Granger (wells) | Hard, often higher; iron common | Private aquifer wells |
| Burnet / Salado (Hill Country wells) | Hard; wells common | Private aquifer wells |
gpg = grains per gallon. Regional benchmarks; your individual well or address can differ — which is why we test on site.
Your town
Water reports by city
Answers
Williamson County water, explained
How hard is Georgetown, TX water in grains per gallon?
About 15.8 grains per gallon (≈271 ppm), based on the City of Round Rock's 2024 report for the regional supply, which ranges 184–358 ppm (10.7–20.9 gpg). That's firmly in the 'very hard' category. Well homes north and west can run harder.
Is Williamson County water safe to drink?
Municipal supplies here meet federal and state drinking-water standards. 'Hard' is a nuisance-and-cost issue — scale, spotting, appliance wear — not a safety violation. A softener addresses the hardness; carbon filtration addresses chlorine taste and odor.
Why is my neighbor's water worse than mine?
Because the regional hardness ranges from about 10.7 to 20.9 grains depending on source and blending, and wells vary well to well. That spread is exactly why an on-site test beats a citywide average.
Sources
Where these numbers come from
- City of Round Rock — 2024 Consumer Confidence Report (hardness 184–358 ppm) — www.roundrocktexas.gov/
- City of Georgetown — Water Quality Report — georgetown.org/water/
- Texas Water Development Board — groundwater & aquifers — www.twdb.texas.gov/groundwater/
- Texas Health & Safety Code §366.013 — softeners on OSSF/septic — statutes.capitol.texas.gov/
Public data summarized for homeowner reference and updated periodically. For the current authoritative figure, see your utility's latest Consumer Confidence Report.
Want your home's exact number?
Averages are a starting point. The free in-home test gives you your water's real reading.