South Dakota Tap Water Quality

Explore tap water quality data for counties across South Dakota. View water system reports, track violations, monitor drinking water safety, and check fluoridation status in your community.

Counties

263

With water systems

Population

842,190

Served by water systems

Water Systems

614

Total water systems

Violators

1

Systems with serious violations

Searching by your address yields the most accurate results. Searching by town or water system may not show all systems due to how the EPA categorizes data. Some towns may be listed under counties, and water system boundaries don't always align with town boundaries.

Filter Results

South Dakota Counties

Aberdeen

Population: 47,720

Water Systems: 35

Aladdin

Population: 132

Water Systems: 2

Alcester

Population: 820

Water Systems: 1

Alexandria

Population: 649

Water Systems: 1

Alpena

Population: 106

Water Systems: 1

Amherst

Population: 20

Water Systems: 1

Arlington

Population: 13,166

Water Systems: 6

Armour

Population: 698

Water Systems: 1

Artesian

Population: 99

Water Systems: 1

Aurora

Population: 922

Water Systems: 1

Avon

Population: 7,010

Water Systems: 2

Badger

Population: 105

Water Systems: 1

Baltic

Population: 1,168

Water Systems: 1

Batesland

Population: 1,324

Water Systems: 2

Bath

Population: 75

Water Systems: 1

Belle Fourche

Population: 6,065

Water Systems: 3

Bend

Population: 37

Water Systems: 1

Beresford

Population: 4,427

Water Systems: 3

Big Stone

Population: 412

Water Systems: 1

Billings

Population: 21

Water Systems: 1

Bison

Population: 780

Water Systems: 2

Black Hawk

Population: 8,077

Water Systems: 47

Blackhawk

Population: 17

Water Systems: 1

Blunt

Population: 175

Water Systems: 1

Bonesteel

Population: 275

Water Systems: 1

Bowdle

Population: 450

Water Systems: 1

Box Elder

Population: 10,551

Water Systems: 1

Brandon

Population: 10,226

Water Systems: 1

Brentford

Population: 88

Water Systems: 1

Bridgewater

Population: 511

Water Systems: 1

Bristol

Population: 288

Water Systems: 1

Britton

Population: 4,299

Water Systems: 7

Brookings

Population: 23,603

Water Systems: 4

Bryant

Population: 460

Water Systems: 1

Buffalo

Population: 346

Water Systems: 1

Serious Violator

Buffalo Gap

Population: 150

Water Systems: 1

Burke

Population: 575

Water Systems: 1

Cando

Population: 170

Water Systems: 1

Canistota

Population: 632

Water Systems: 1

Canova

Population: 99

Water Systems: 1

Canton

Population: 3,066

Water Systems: 1

Carpenter

Population: 103

Water Systems: 2

Castlewood

Population: 698

Water Systems: 1

Cedaredge

Population: 56

Water Systems: 1

Centerville

Population: 918

Water Systems: 1

Chamberlain

Population: 2,615

Water Systems: 2

Chancellor

Population: 266

Water Systems: 1

Chester

Population: 181

Water Systems: 1

Claremont

Population: 54

Water Systems: 1

Clark

Population: 2,549

Water Systems: 3

Clear Lake

Population: 4,364

Water Systems: 2

Colman

Population: 593

Water Systems: 1

Colome

Population: 323

Water Systems: 1

Colton

Population: 689

Water Systems: 1

Conde

Population: 142

Water Systems: 1

Corona

Population: 82

Water Systems: 1

Corsica

Population: 561

Water Systems: 1

Cresbard

Population: 96

Water Systems: 1

Crooks

Population: 1,362

Water Systems: 1

Custer

Population: 1,919

Water Systems: 1

Dakota Dunes

Population: 3,700

Water Systems: 1

Dallas

Population: 89

Water Systems: 1

De Smet

Population: 1,056

Water Systems: 1

Deadwood

Population: 1,251

Water Systems: 6

Dell Rapids

Population: 17,068

Water Systems: 2

Delmont

Population: 243

Water Systems: 3

Doland

Population: 199

Water Systems: 1

Dupree

Population: 494

Water Systems: 1

Eagle Butte

Population: 5,631

Water Systems: 2

Eden

Population: 99

Water Systems: 1

Edgemont

Population: 767

Water Systems: 2

Egan

Population: 6,313

Water Systems: 4

Elk Point

Population: 2,124

Water Systems: 1

Elkton

Population: 834

Water Systems: 2

Ellsworth Afb

Population: 6,827

Water Systems: 1

Emery

Population: 1,822

Water Systems: 2

Estelline

Population: 752

Water Systems: 1

Ethan

Population: 320

Water Systems: 1

Eureka

Population: 813

Water Systems: 1

Excelsior

Population: 230

Water Systems: 1

Fairburn

Population: 65

Water Systems: 1

Faith

Population: 367

Water Systems: 1

Faulkton

Population: 934

Water Systems: 4

Flandreau

Population: 2,425

Water Systems: 2

Florence

Population: 1,753

Water Systems: 3

Flower Mound

Population: 25

Water Systems: 1

Fort Meade

Population: 800

Water Systems: 1

Fort Pierre

Population: 2,115

Water Systems: 1

Frankfort

Population: 141

Water Systems: 3

Frederick

Population: 215

Water Systems: 1

Freeman

Population: 1,329

Water Systems: 1

Fruitdale

Population: 206

Water Systems: 3

Fulton

Population: 1,342

Water Systems: 1

Garden City

Population: 50

Water Systems: 1

Garretson

Population: 1,228

Water Systems: 1

Gary

Population: 240

Water Systems: 1

Gayville

Population: 392

Water Systems: 1

Gettysburg

Population: 1,162

Water Systems: 1

Glencross

Population: 83

Water Systems: 1

Goodwin

Population: 2,006

Water Systems: 1

Gregory

Population: 1,221

Water Systems: 1

Grenville

Population: 48

Water Systems: 1

Groton

Population: 1,380

Water Systems: 1

Hamill

Population: 2,430

Water Systems: 1

Harrisburg

Population: 9,700

Water Systems: 1

Hartford

Population: 3,396

Water Systems: 1

Hayti

Population: 389

Water Systems: 1

Hecla

Population: 208

Water Systems: 1

Henry

Population: 256

Water Systems: 1

Hermosa

Population: 623

Water Systems: 4

Herreid

Population: 424

Water Systems: 1

Highmore

Population: 682

Water Systems: 1

Hill City

Population: 897

Water Systems: 2

Hitchcock

Population: 56

Water Systems: 1

Hosmer

Population: 190

Water Systems: 2

Hot Springs

Population: 4,716

Water Systems: 9

Hoven

Population: 346

Water Systems: 1

Howard

Population: 848

Water Systems: 1

Hudson

Population: 369

Water Systems: 1

Humboldt

Population: 567

Water Systems: 1

Hurley

Population: 379

Water Systems: 1

Huron

Population: 14,350

Water Systems: 3

Ipswich

Population: 1,003

Water Systems: 2

Irene

Population: 422

Water Systems: 1

Iroquois

Population: 354

Water Systems: 3

Isabel

Population: 145

Water Systems: 1

Java

Population: 125

Water Systems: 1

Jefferson

Population: 475

Water Systems: 1

Kadoka

Population: 543

Water Systems: 1

Kennebec

Population: 265

Water Systems: 1

Keystone

Population: 349

Water Systems: 1

Kimball

Population: 3,322

Water Systems: 2

Lake Andes

Population: 3,924

Water Systems: 3

Lake City

Population: 22

Water Systems: 1

Lake Norden

Population: 554

Water Systems: 1

Lake Preston

Population: 553

Water Systems: 1

Langford

Population: 3,119

Water Systems: 2

Las Vegas

Population: 105

Water Systems: 1

Lead

Population: 3,430

Water Systems: 6

Lemmon

Population: 1,140

Water Systems: 1

Lennox

Population: 2,571

Water Systems: 1

Leola

Population: 434

Water Systems: 1

Lesterville

Population: 115

Water Systems: 1

Letcher

Population: 159

Water Systems: 1

Luverne

Population: 0

Water Systems: 1

Madison

Population: 6,071

Water Systems: 1

Marion

Population: 774

Water Systems: 1

Martin

Population: 1,059

Water Systems: 2

Marvin

Population: 14

Water Systems: 1

Mcintosh

Population: 111

Water Systems: 1

Mclaughlin

Population: 569

Water Systems: 1

Mellette

Population: 99

Water Systems: 1

Menno

Population: 614

Water Systems: 1

Mercer Island

Population: 132

Water Systems: 1

Midland

Population: 120

Water Systems: 1

Milbank

Population: 8,087

Water Systems: 2

Miller

Population: 7,896

Water Systems: 8

Mina

Population: 431

Water Systems: 1

Mission Hill

Population: 280

Water Systems: 2

Mitchell

Population: 18,781

Water Systems: 2

Mobridge

Population: 3,471

Water Systems: 2

Montrose

Population: 468

Water Systems: 1

Morristown

Population: 47

Water Systems: 1

Mount Vernon

Population: 461

Water Systems: 1

Murdo

Population: 8,285

Water Systems: 4

New Effington

Population: 247

Water Systems: 1

New Underwood

Population: 1,001

Water Systems: 4

Newell

Population: 2,453

Water Systems: 3

Nisland

Population: 206

Water Systems: 1

North Sioux City

Population: 3,042

Water Systems: 1

Northville

Population: 143

Water Systems: 1

Oacoma

Population: 386

Water Systems: 1

Oelrichs

Population: 117

Water Systems: 1

Onida

Population: 634

Water Systems: 1

Oral

Population: 1,125

Water Systems: 2

Owanka

Population: 77

Water Systems: 2

Parker

Population: 3,054

Water Systems: 2

Parkston

Population: 1,567

Water Systems: 1

Peever

Population: 82

Water Systems: 1

Philip

Population: 1,344

Water Systems: 2

Pickstown

Population: 230

Water Systems: 1

Piedmont

Population: 3,491

Water Systems: 29

Pierpont

Population: 129

Water Systems: 1

Pierre

Population: 20,570

Water Systems: 4

Plankinton

Population: 712

Water Systems: 1

Platte

Population: 1,256

Water Systems: 1

Pollock

Population: 229

Water Systems: 1

Presho

Population: 472

Water Systems: 1

Pukwana

Population: 142

Water Systems: 1

Ramona

Population: 79

Water Systems: 1

Rancho Palos Verde

Population: 60

Water Systems: 1

Rapid City

Population: 92,149

Water Systems: 66

Raymond

Population: 53

Water Systems: 1

Redfield

Population: 2,294

Water Systems: 2

Ridgeview

Population: 1,631

Water Systems: 1

Roscoe

Population: 281

Water Systems: 1

Rosholt

Population: 433

Water Systems: 2

Roslyn

Population: 162

Water Systems: 1

Saint Lawrence

Population: 89

Water Systems: 1

Saint Onge

Population: 127

Water Systems: 1

Salem

Population: 1,325

Water Systems: 1

Scotland

Population: 860

Water Systems: 2

Scranton

Population: 12

Water Systems: 1

Selby

Population: 611

Water Systems: 1

Seneca

Population: 25

Water Systems: 1

Sioux Falls

Population: 207,306

Water Systems: 10

Sisseton

Population: 2,479

Water Systems: 1

South Shore

Population: 194

Water Systems: 2

Spearfish

Population: 13,959

Water Systems: 26

Spencer

Population: 170

Water Systems: 1

Spokane

Population: 115

Water Systems: 1

Springfield

Population: 2,108

Water Systems: 1

Stickney

Population: 321

Water Systems: 1

Stratford

Population: 102

Water Systems: 2

Strugis

Population: 24

Water Systems: 1

Sturgis

Population: 7,893

Water Systems: 10

Summerset

Population: 80

Water Systems: 2

Summit

Population: 377

Water Systems: 2

Tabor

Population: 6,843

Water Systems: 2

Tea

Population: 6,847

Water Systems: 2

Timber Lake

Population: 499

Water Systems: 1

Tolstoy

Population: 34

Water Systems: 1

Toronto

Population: 3,100

Water Systems: 1

Trent

Population: 232

Water Systems: 1

Tripp

Population: 575

Water Systems: 1

Tualatin

Population: 405

Water Systems: 3

Tulare

Population: 105

Water Systems: 1

Tyndall

Population: 1,012

Water Systems: 1

Utica

Population: 65

Water Systems: 1

Vale

Population: 120

Water Systems: 1

Valley Springs

Population: 712

Water Systems: 1

Veblen

Population: 539

Water Systems: 1

Vermillion

Population: 11,254

Water Systems: 2

Viborg

Population: 814

Water Systems: 1

Volga

Population: 2,340

Water Systems: 1

Volin

Population: 161

Water Systems: 1

Wagner

Population: 4,724

Water Systems: 2

Wakonda

Population: 6,623

Water Systems: 3

Wall

Population: 741

Water Systems: 2

Wallace

Population: 89

Water Systems: 1

Ward

Population: 41

Water Systems: 1

Warner

Population: 452

Water Systems: 1

Wasta

Population: 42

Water Systems: 1

Watertown

Population: 24,228

Water Systems: 3

Waubay

Population: 473

Water Systems: 1

Webster

Population: 1,696

Water Systems: 1

Wellesley

Population: 66

Water Systems: 1

Wentworth

Population: 91

Water Systems: 1

Wessington

Population: 170

Water Systems: 1

Wessington Springs

Population: 895

Water Systems: 1

Westminster

Population: 106

Water Systems: 1

Westport

Population: 203

Water Systems: 3

White

Population: 580

Water Systems: 2

White Lake

Population: 359

Water Systems: 1

White River

Population: 533

Water Systems: 1

Whitewood

Population: 1,267

Water Systems: 5

Willow Lake

Population: 260

Water Systems: 1

Wilmot

Population: 432

Water Systems: 1

Winner

Population: 5,351

Water Systems: 2

Wolsey

Population: 459

Water Systems: 1

Woonsocket

Population: 618

Water Systems: 1

Worthing

Population: 3,141

Water Systems: 2

Yankton

Population: 15,596

Water Systems: 3