Water hardness in Sugar Land
7.3 gpg hard
Tap water in Sugar Land is hard: 7.3 gpg (125 mg/L · 7 °dH · 12.5 °fH).
Source: City of Sugar Land Water Quality - Water Hardness Levels table (2025) · data checked 2026-10-19
Range across supply zones: 34–280 mg/L.
4 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| gpg | mg/L | ||
|---|---|---|---|
| Greatwood | 5.8 | 99 | moderately hard |
| Main | 9.2 | 158 | hard |
| New Territory | 6.9 | 118 | moderately hard |
| River Park | 7.7 | 132 | hard |
The City of Sugar Land publishes hardness ranges by area but no averages: Main 35 to 280 mg/L, Greatwood 34 to 164, New Territory 50 to 186 and River Park 109 to 155 mg/L. Across the four areas, that is 2.0 to 16.4 gpg. The page is undated, so the year is approximate, and it does not state the CaCO3 basis for ppm. Which area you live in changes how much scale you see, so check the city's table for your neighborhood.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 7.3 gpg |
|---|---|
| Utility | City of Sugar Land Water Quality (Public Works) |
How Sugar Land compares
- Tap water in Sugar Land is 19 % softer than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 863 of 1372 in the United States (1 = hardest); 37 % of these cities have softer water.
- In Texas it is number 42 of 60 cities; the regional median is 8.6 gpg.
- Nearest city with clearly softer water: College Station, 133 km away (0.4 gpg).
Ranking of the hardest and softest water in the United States →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Sugar Land
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 7 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| LG | H2 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Sugar Land water hard or soft?
It is hard: 125 mg/L as CaCO₃ (7.3 gpg, 7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Sugar Land safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
How many grains per gallon is Sugar Land water?
7.3 gpg, equal to 7 °dH, 12.5 °fH or 125 mg/L calcium carbonate.
What dishwasher salt setting should I use in Sugar Land?
For 125 mg/L (7 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Sugar Land?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: City of Sugar Land Water Quality - Water Hardness Levels table (2025). Method: computed from supplier's calcium and magnesium. City of Sugar Land Water Quality - Water Hardness Levels table · Outdated figure? Tell us