Iron in Minnesota well water
In Minnesota, iron was detected in 77% of 16,147 tested private well samples.
Iron is a nuisance rather than a health hazard: rust stains, metallic taste, and clogged fixtures above 300 ug/L. It often occurs with manganese and can feed iron bacteria that foul plumbing.
Check your iron number
Type the value from your lab report. It is compared to the EPA limit, the same way the full interpretation does it.
Test your Minnesota well for iron
Certified lab analysis of your own tap water, bottles and prepaid return shipping included. The Essential well panel covers arsenic, uranium, nitrate, lead, copper, manganese, iron, sodium and bacteria; radon and PFAS are add-ons.
Order the Tap Score well water test kit, from $209Already tested? Upload the report
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Systems that remove iron
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Some links below are affiliate links. If you buy through one, the merchant pays us a commission at no extra cost to you. It does not change which products we list or what the data says.
For iron
Iron and manganese oxidizing filter
whole-house, at the point of entry, about $1,800
Air-injection or greensand media; fixes staining at the source.
Rather have it installed and sized for your well? Book a free in-home water test with a licensed local company.
Where to get a well tested for iron in Minnesota: certified labs, state programs and prices.
By county, from individual samples
Public monitoring samples against the EPA limit; counties with at least 30 samples.
| County | Above EPA limit | Samples | Detected | Median | Highest |
|---|---|---|---|---|---|
| Jackson | no limit | 38 | 100% | 2,465 | 14718 ug/L |
| Watonwan | no limit | 34 | 100% | 3157 | 18,000 ug/L |
| Murray | no limit | 45 | 100% | 2,690 | 21,000 ug/L |
| Wilkin | no limit | 39 | 100% | 1551 | 28,000 ug/L |
| Swift | no limit | 58 | 100% | 1,540 | 15,000 ug/L |
| Roseau | no limit | 52 | 100% | 935 | 5,900 ug/L |
| Grant | no limit | 33 | 100% | 2,170 | 11,000 ug/L |
| McLeod | no limit | 89 | 100% | 1,630 | 7,900 ug/L |
| Carver | no limit | 102 | 100% | 1,610 | 8,770 ug/L |
| Faribault | no limit | 46 | 100% | 2,250 | 11,000 ug/L |
| Big Stone | no limit | 31 | 100% | 2,100 | 11,000 ug/L |
| Kittson | no limit | 45 | 100% | 616 | 12,000 ug/L |
| Marshall | no limit | 67 | 100% | 1,500 | 8,900 ug/L |
| Steele | no limit | 125 | 99% | 1,940 | 7,680 ug/L |
| Sibley | no limit | 124 | 99% | 2083 | 10,300 ug/L |
- Aldrich township, Wadena County100% detected of 33
- Lino Lakes, Anoka County100% detected of 66
- Staples, Wadena County100% detected of 216
- Elmwood township, Clay County100% detected of 35
- North Carlton UT, Carlton County100% detected of 30
- Blaine, Anoka County98% detected of 48
- Lansing township, Mower County97% detected of 36
- Wadena township, Wadena County97% detected of 34
- Fridley, Anoka County96% detected of 73
- Birch Lake UT, St. Louis County96% detected of 48
- Thomastown township, Wadena County94% detected of 50
- White Oak township, Hubbard County94% detected of 99
- Wyoming, Chisago County94% detected of 31
- Baldwin township, Sherburne County93% detected of 30
- Minneapolis, Hennepin County93% detected of 84
- Rosemount, Dakota County91% detected of 32
- Waite Park, Stearns County89% detected of 74
- St. Louis Park, Hennepin County88% detected of 162
- Brooklyn Center, Hennepin County88% detected of 160
- Hubbard township, Hubbard County87% detected of 63
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. iron counts and shares are listed on each county and town page with their sources.