Minnesota Water Quality Ratings

TapWaterSafety has rated 20 public water systems in Minnesota, serving a combined 2,758,301 residents. The statewide average grade is C.

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?

State average grade

C

71/100

Total utilities rated 20

Population served 2,758,301

Most recent test 2024

Top water quality concerns in Minnesota

Haloacetic acids (HAA9) significantly above health guideline
Total trihalomethanes (TTHMs) significantly above health guideline
PFAS contamination
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Haloacetic acids (HAA5) significantly above health guideline

Cities in Minnesota

Browse tap water quality reports by city. Click any city to see its grade, what's in the water, and recommended filters.

Grade distribution

A

0 (0%)

B

10 (50%)

C

6 (30%)

D

4 (20%)

F

0 (0%)

All rated utilities in Minnesota

Sorted by score, highest first. Click any utility to see the full grade card.

Rank	Utility	City	Population	Score	Grade
#1	Eagan	Eagan	68,223	83	B
#2	Duluth	Duluth	86,859	82	B
#3	Minneapolis	Minneapolis	425,300	80	B
#4	Eden Prairie	Eden Prairie	63,726	79	B
#5	Rochester	Rochester	123,624	76	B
#6	Burnsville	Burnsville	61,747	75	B
#7	Lakeville	Lakeville	67,300	75	B
#8	Bloomington	Bloomington	91,300	75	B
#9	Minneapolis Municipal Water System	Minneapolis	425,000	75	B
#10	St. Paul Department of Public Works	St. Paul	308,000	75	B
#11	Blaine	Blaine	70,220	71	C
#12	Edina	Edina	53,494	71	C
#13	Maple Grove	Maple Grove	82,000	70	C
#14	Saint Cloud	St. Cloud	71,321	69	C
#15	Minnetonka	Minnetonka	54,474	67	C
#16	Woodbury	Woodbury	82,643	65	C
#17	Coon Rapids	Coon Rapids	64,000	63	D
#18	Plymouth	Plymouth	76,546	63	D
#19	Brooklyn Park	Brooklyn Park	89,995	57	D
#20	Saint Paul Regional Water Services	St. Paul	392,529	55	D