Houston vs Chicago
Water hardness comparison — how the two cities differ and what it means for your home.
Houston
united states
137mg/L
Hard Water
9.59°e
Hard
Base Unit (CaCO3): 137 mg/LLocal Unit
HarderFull Chicago data →
Chicago
united states
153mg/L
Hard Water
10.71°e
Hard
Base Unit (CaCO3): 153 mg/LLocal Unit
Side-by-Side Impact
| Impact Area | Houston | Chicago |
|---|---|---|
| Limescale buildup | Moderate — monthly descaling | Moderate — monthly descaling |
| Boiler/heating risk | Monitor annually | Monitor annually |
| Dishwasher salt setting | High salt setting (3–5) | High salt setting (3–5) |
| Skin & hair impact | Low risk | Moderate risk |
| Detergent usage | +15–25% more | +15–25% more |
Key Findings
Hardness Difference: 16 mg/L
The difference between Houston and Chicago is relatively small. Both cities fall into the same hardness category and would use similar appliance settings and treatment products.