Texas Water Hardness Map
27 cities · average 11.2 GPG
Average hardness
11.2 GPG
Hardest city
Midland 29.2 GPG
Softest city
College Station 0.35 GPG
Map — Texas cities by hardness
Very HardHardModerateSoft
Tier distribution
Very Hard14Hard8Moderate3Soft2
Cities ranked by hardness
1Midland29.2 GPGVery Hard2The Woodlands25.1 GPGVery Hard3Brownsville20.9 GPGVery Hard4San Antonio17.5 GPGVery Hard5Round Rock14.55 GPGVery Hard6Amarillo13.9 GPGVery Hard7Corpus Christi13.8 GPGVery Hard8Allen11.8 GPGVery Hard9Richardson11.8 GPGVery Hard10Frisco11.7 GPGVery Hard11Garland11.7 GPGVery Hard12Mesquite11.7 GPGVery Hard13Plano11 GPGVery Hard14Abilene10.5 GPGVery Hard15El Paso10.2 GPGHard16Grand Prairie9.9 GPGHard17Lubbock9.9 GPGHard18Lewisville8.24 GPGHard19Houston7.9 GPGHard20Waco7.6 GPGHard21Fort Worth7.5 GPGHard22League City7.3 GPGHard23Sugar Land6.08 GPGModerate24Arlington5.5 GPGModerate25Austin4.9 GPGModerate26Tyler2.58 GPGSoft27College Station0.35 GPGSoft