Official EPA SDWIS Statewide AnalysisState Water Quality & Testing Directory

North Dakota Drinking Water Quality & Testing Directory

Comprehensive EPA compliance records, water testing guidelines, and city rankings covering all 407 ZIP codes across North Dakota

Quick Summary: Is Tap Water Safe in North Dakota?

Drinking water in North Dakota receives an average composite safety score of 56.1/100 based on EPA Safe Drinking Water Act records. Approximately 1% of monitored ZIP codes earn an "A" grade. Water sources are 31.4% surface water and 68.6% groundwater, resulting in Hard to Very Hard mineral hardness across the state.

Total ZIP Codes

407

Health Violations (5yr)

Statewide Avg Score

56.1/100

High Lead Risk Areas

79.1%

Overview: Drinking Water in North Dakota

Drinking water quality in North Dakota averages a composite safety score of 56.1/100 across its 407 monitored ZIP codes. Approximately 1% of ZIP codes in the state receive an "A" grade, while 1% receive an "F" grade. Environmental standards are enforced by North Dakota Department of Environmental Quality.

Surface Water

31.4%

of ZIP codes

Total Violations

395

5-year record

Grade A ZIPs

1% of state

Grade F ZIPs

1% of state

Water Quality Grade Distribution in North Dakota

How do North Dakota's 407 ZIP codes stack up by water quality grade?

4 ZIP codes1%

46 ZIP codes11%

170 ZIP codes42%

183 ZIP codes45%

4 ZIP codes1%

City A-Z Directory — North Dakota

Browse water quality reports for every town and city in North Dakota.

Abercrombie Absaraka Adams Agate Alamo Alexander Almont Alsen Ambrose Amenia Amidon Anamoose Aneta Antler Argusville Arnegard Arthur Arvilla Ashley Ayr

Baldwin Balfour Balta Bantry Barney Bathgate Beach Belcourt Belfield Benedict Berlin Berthold Beulah Binford Bisbee Bismarck Blanchard Bottineau Bowbells Bowdon Bowman Braddock Brocket Buchanan Buffalo Burlington Butte Buxton

Dahlen Davenport Dawson Dazey Deering Denhoff Des Lacs Devils Lake Dickey Dickinson Dodge Donnybrook Douglas Drake Drayton Driscoll Dunn Center Dunseith

Edgeley Edinburg Edmore Egeland Elgin Ellendale Emerado Enderlin Epping Erie Esmond

Fairdale Fairfield Fairmount Fargo Fessenden Fingal Finley Flasher Flaxton Forbes Fordville Forest River Forman Fort Ransom Fort Totten Fort Yates Fortuna Fredonia Fullerton

Gackle Galesburg Gardner Garrison Gilby Gladstone Glasston Glen Ullin Glenburn Glenfield Golden Valley Golva Goodrich Grace City Grafton Grand Forks Grand Forks Afb Grandin Granville Grassy Butte Grenora Gwinner

Hague Halliday Hamilton Hampden Hankinson Hannaford Hannah Hansboro Harvey Harwood Hatton Havana Hazelton Hazen Hebron Hensel Hettinger Hillsboro Hoople Hope Horace Hunter Hurdsfield

Inkster

Jamestown Jessie Jud

Karlsruhe Kathryn Keene Kenmare Kensal Killdeer Kindred Kintyre Knox Kramer Kulm

Lakota Lamoure Langdon Lankin Lansford Larimore Lawton Leeds Lefor Lehr Leonard Lidgerwood Lignite Linton Lisbon Litchville Luverne

Napoleon Neche Nekoma New England New Leipzig New Rockford New Salem New Town Newburg Niagara Nome Noonan Northwood Norwich

Oakes Oberon Oriska Osnabrock

Page Palermo Park River Parshall Pekin Pembina Penn Perth Petersburg Pettibone Pillsbury Pingree Pisek Plaza Portal Portland Powers Lake

Raleigh Ray Reeder Regan Regent Reynolds Rhame Richardton Riverdale Robinson Rocklake Rogers Rolette Rolla Roseglen Ross Rugby Ruso Rutland Ryder

Tappen Taylor Thompson Tioga Tokio Tolley Tolna Tower City Towner Trenton Turtle Lake Tuttle

Underwood Upham

Valley City Velva Verona Voltaire

Wahpeton Walcott Wales Walhalla Warwick Washburn Watford City Webster West Fargo Westhope Wheatland White Earth Wildrose Williston Willow City Wilton Wimbledon Wing Wishek Wolford Woodworth Wyndmere

York Ypsilanti

Zahl Zap Zeeland

🏆 Highest Rated ZIP Codes in North Dakota

⚠ Lowest Rated ZIP Codes in North Dakota

Common Drinking Water Contaminants in North Dakota

The following are common regulated contaminants found in North Dakota drinking water based on EPA violation records. Click any contaminant to learn about EPA safety limits and health effects.

Stage 2 DBP RuleConsumer Confidence Report RuleStage 1 DBP RuleHaloacetic Acids (HAA5)Barium

Source: EPA Safe Drinking Water Act Maximum Contaminant Level regulations. For the complete list of regulated contaminants and MCLs, see the Water Quality Safety Guide.

Frequently Asked Questions — North Dakota Drinking Water

Is tap water generally safe to drink in North Dakota?+

Yes, for the majority of residents, tap water in North Dakota is treated and regulated. However, compliance varies by city. State-wide, 4 ZIP codes receive an "A" grade, while 4 receive an "F". Search your specific ZIP code to see your local utility's record.

How do I test water quality or well water in North Dakota?+

Residents in North Dakota can test their tap or well water by contacting laboratories certified by North Dakota Department of Environmental Quality or ordering an EPA-standard laboratory water testing kit. Annual testing is recommended for private wells to test for bacteria, nitrates, and heavy metals.

What are the biggest water quality issues in North Dakota?+

The primary issues include managing 30 health-based violations state-wide and resolving infrastructure age. 79.1% of ZIP codes in the state have a high probability of lead exposure risk due to pre-1986 piping.

Who regulates and enforces drinking water standards in North Dakota?+

Drinking water in North Dakota is regulated by North Dakota Department of Environmental Quality under a primacy agreement with the U.S. EPA.

Where does North Dakota get its drinking water?+

Approximately 31.4% of monitored areas in North Dakota rely on surface water sources (lakes/rivers), while the rest use groundwater aquifers.

How do I find the official water quality report for my home in North Dakota?+

Search your ZIP code on our site to view data compiled from EPA records, or contact your local utility for their annual Consumer Confidence Report (CCR).

View All 407 ZIP Codes in North Dakota

Browse EPA water quality data for every monitored ZIP code. For faster results, use the search bar above.

58001 58002 58004 58005 58006 58007 58008 58009 58011 58012 58013 58015 58016 58017 58018 58021 58027 58029 58030 58031 58032 58033 58035 58036 58038 58040 58041 58042 58043 58045 58046 58047 58048 58049 58051 58052 58053 58054 58056 58057 58058 58059 58060 58061 58062 58063 58064 58065 58067 58068 58069 58071 58072 58074 58075 58076 58077 58078 58079 58081 58102 58103 58104 58105 58106 58107 58108 58109 58121 58122 58124 58125 58126 58201 58202 58203 58204 58205 58206 58207 58208 58210 58212 58214 58216 58218 58219 58220 58222 58223 58224 58225 58227 58228 58229 58230 58231 58233 58235 58236 58237 58238 58239 58240 58241 58243 58244 58249 58250 58251 58254 58255 58256 58257 58258 58259 58260 58261 58262 58265 58266 58267 58269 58270 58271 58272 58273 58274 58275 58276 58277 58278 58281 58282 58301 58310 58311 58313 58316 58317 58318 58321 58323 58324 58325 58327 58329 58330 58331 58332 58335 58338 58339 58341 58343 58344 58345 58346 58348 58351 58352 58353 58355 58356 58357 58361 58362 58363 58365 58366 58367 58368 58369 58370 58372 58374 58377 58379 58380 58381 58382 58384 58385 58386 58401 58402 58405 58413 58415 58416 58418 58420 58421 58422 58423 58424 58425 58426 58428 58429 58430 58431 58433 58436 58438 58439 58440 58441 58442 58443 58444 58445 58448 58451 58452 58454 58455 58456 58458 58460 58461 58463 58464 58466 58467 58472 58474 58475 58476 58477 58478 58479 58480 58481 58482 58483 58484 58486 58487 58488 58490 58492 58494 58495 58496 58497 58501 58502 58503 58504 58505 58506 58507 58520 58521 58523 58524 58528 58529 58530 58531 58532 58533 58535 58538 58540 58541 58542 58544 58545 58549 58552 58554 58558 58559 58560 58561 58562 58563 58564 58565 58566 58568 58569 58570 58571 58572 58573 58575 58576 58577 58579 58580 58581 58601 58602 58620 58621 58622 58623 58625 58626 58627 58630 58631 58632 58634 58636 58638 58639 58640 58641 58642 58643 58644 58645 58646 58647 58649 58650 58651 58652 58653 58654 58655 58656 58701 58702 58703 58704 58705 58707 58710 58711 58712 58713 58716 58718 58721 58722 58723 58725 58727 58730 58731 58733 58734 58735 58736 58737 58740 58741 58744 58746 58748 58750 58752 58755 58756 58757 58758 58759 58760 58761 58762 58763 58765 58768 58769 58770 58771 58772 58773 58775 58776 58778 58779 58781 58782 58783 58784 58785 58787 58788 58789 58790 58792 58793 58794 58795 58801 58802 58803 58830 58831 58833 58835 58838 58843 58844 58845 58847 58849 58852 58853 58854 58856

All 407 ZIP codes in North Dakota are actively monitored under the EPA Safe Drinking Water Act.