Council Bluffs vs Dubuque Water Quality

Side-by-side water quality comparison for two Iowa cities.

If you are comparing Council Bluffs and Dubuque water quality - whether moving, choosing between the two, or curious about a relative's water - here is what the data shows.

Hardness comparison

Council Bluffs has somewhat harder water at 296 PPM versus Dubuque at 295 PPM, a difference of 1 PPM. At 296 PPM, Council Bluffs residents should budget for a water softener ($600-$1,500 installed). Without one, expect scale buildup on fixtures, reduced water heater efficiency, and $800-$1,200/year in hidden costs. Dubuque also has hard water but to a lesser degree.

Both cities have hard water, but Council Bluffs's higher hardness means more aggressive scale buildup and higher household impact.

Water sources and why they differ

Water sources differ: Council Bluffs draws from Missouri River alluvial wells, while Dubuque uses Mississippi River & wells. Both use similar source types, but local geology creates the hardness variation.

Contaminant concerns

PFAS contamination is a concern in Dubuque (15.6 ppt, above the EPA limit of 4 ppt). A reverse osmosis system or NSF P473-certified filter is recommended for drinking water.

What this means for you

If you are moving from Dubuque to Council Bluffs, you will notice the water difference. Budget for a water softener and expect to use more soap and detergent until you install one.

Not sure what your specific situation needs? Take the quiz to get a recommendation based on your water data, budget, and household size.

MetricCouncil BluffsDubuque
Hardness296 PPM295 PPM
GPG17.317.3
TDS397 PPM523 PPM
PFAS0 ppt15.6 ppt
Lead2 ppb5 ppb
Chlorine1 mg/L0.9 mg/L
LevelExtremely HardExtremely Hard

FAQ

Which has harder water, Council Bluffs or Dubuque?
Council Bluffs has harder water at 296 PPM compared to Dubuque at 295 PPM. That is a difference of 1 PPM.
Do I need a water softener if I move from Dubuque to Council Bluffs?
Yes, you will likely notice the difference. At 296 PPM, a water softener is recommended to prevent scale buildup and protect appliances.
Is Dubuque water safe to drink?
Dubuque water meets EPA safety standards. However, PFAS levels of 15.6 ppt exceed the 2024 EPA health advisory of 4 ppt. A certified filter is recommended.