Water Hardness in Davenport, IA
Iowa · 6 zip codes · 13 matched water systems
City avg (weighted): 180 PPM
Dataset updated March 9, 202613 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
How this city reading is built
This city reading is a weighted rollup across 13 matched water systems and 6 ZIP codes. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.
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 in Davenport
These systems are matched to Davenport, IA. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
Iowa-American Wtr Co-Davenport IA8222001 | surface water | 180 PPM HardUSGS estimate: 335 PPM | |
Iowa American Water Donahue IA8227045 | groundwater | 180 PPM HardUSGS estimate: 335 PPM | |
Ponderosa Park Mhp IA8222612 | surface water | 180 PPM HardUSGS estimate: 335 PPM | |
Iowa-American Water-Dixon IA8225043 | groundwater | 180 PPM HardUSGS estimate: 335 PPM | |
Hickory Hills Subdivision #2 IA8215303 | groundwater | 180 PPM HardUSGS estimate: 230 PPM |
Zip Codes in Davenport, IA
What This Means For You
Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.
Hard Water - Treatment Recommended
Your water is hard. Scale buildup is likely affecting your plumbing and appliances, reducing their lifespan and efficiency. A water softener is recommended to protect your home.
Recommended Products
Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your 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 Davenport, IA.
Frequently Asked Questions
How hard is the water in Davenport, IA?
The citywide weighted average water hardness in Davenport, IA is 180 PPM (10.5 GPG), classified as hard. This is based on 13 matched water systems.
Do I need a water softener in Davenport, IA?
With a citywide average hardness of 180 PPM, a water softener is recommended for homes in Davenport. Confirm your tap reading before sizing equipment.
Is hard water in Davenport, IA 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 Davenport, IA?
Davenport, Iowa is served by 13 matched water systems across 6 zip codes.
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