Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Iowa Water Quality Reports
Water quality scores for 25 cities in Iowa
Council Bluffs
62,799 residents
Mason City
27,338 residents
West Des Moines
68,723 residents
Clinton
24,469 residents
Iowa City
74,828 residents
Marshalltown
27,790 residents
Ames
66,258 residents
Ankeny
67,887 residents
North Liberty
21,470 residents
Ottumwa
24,505 residents
Davenport
101,724 residents
Johnston
24,385 residents
Marion
41,535 residents
Burlington
24,858 residents
Muscatine
23,797 residents
Coralville
22,318 residents
Sioux City
85,797 residents
Bettendorf
39,102 residents
Cedar Falls
41,566 residents
Waterloo
67,314 residents
Dubuque
59,667 residents
Urbandale
45,779 residents
Des Moines
214,133 residents
Fort Dodge
24,000 residents
Cedar Rapids
137,710 residents
About Iowa Water Quality
This state's water quality reflects local geographic conditions, industrial activities, and water infrastructure. Water quality can vary significantly between communities, with some areas enjoying excellent tap water while others face contamination challenges requiring treatment.
Based on our analysis of 25 cities in Iowa, the average water quality score is 83/100. 3 cities have water quality scores below 70, indicating potential concerns that residents should be aware of. The highest-rated city is Cedar Rapids with a score of 64/100, while Council Bluffs has the most room for improvement at 96/100.
Water Sources in Iowa
Water sources typically include a combination of surface water (rivers, lakes, reservoirs) and groundwater. The specific sources serving your community depend on local geography and infrastructure. Check your local water utility's Consumer Confidence Report for details about your water source.
Common Water Contaminants in Iowa
These contaminants have been detected in various Iowa water systems
Iowa Water Regulations
State environmental and health agencies oversee drinking water quality in compliance with federal EPA standards. Public water systems are required to test regularly and report results to residents through annual Consumer Confidence Reports.
Health Considerations
Water quality concerns vary by location. Common issues include lead from older plumbing, agricultural runoff in rural areas, and industrial contamination near manufacturing sites. Check your local water quality report and consider testing if you have specific concerns.
Recommendations for Iowa Residents
Review your annual Consumer Confidence Report to understand local water quality. Consider having your water tested if you use a private well or have concerns about your plumbing. Water filters certified to remove specific contaminants can address most common water quality issues.
Frequently Asked Questions About Iowa Water Quality
Is Iowa's tap water safe to drink?
Most Iowa cities have tap water that meets EPA safety standards. With an average score of 83/100 across 25 cities we analyzed, Iowa generally has good water quality. However, water quality varies by location, so check your specific city's report.
What are the main water quality concerns in Iowa?
The most common water quality concerns in Iowa include disinfection byproducts (chlorination), lead (older infrastructure), nitrates (agricultural areas). These contaminants can come from natural sources, industrial activities, or aging infrastructure. Review your city's specific report to see which contaminants affect your area.
Should I use a water filter in Iowa?
Whether you need a water filter depends on your specific location and health concerns. With 3 cities in Iowa showing elevated contaminant levels, residents in those areas may benefit from filtration. Look for filters certified by NSF/ANSI to remove the specific contaminants found in your area.
Where can I find my Iowa water quality report?
Public water systems in Iowa are required to provide annual Consumer Confidence Reports (CCRs) to residents. You can usually find your report on your water utility's website, request it by phone, or access it through the EPA's database. Our city-level reports above summarize key information from these official sources.