South Dakota Water Quality

260 ZIP codes analyzed across 250 cities. Average water quality score: 51/100 (national average: 50/100).

Sioux Falls

7 ZIPs

A

Rapid City

4 ZIPs

D

Aberdeen

2 ZIPs

C

Alcester

1 ZIP

B

Alexandria

1 ZIP

A

Allen

1 ZIP

D

Alpena

1 ZIP

C

Amherst

1 ZIP

B

Arlington

1 ZIP

D

Armour

1 ZIP

A

Artesian

1 ZIP

F

Aurora

1 ZIP

B

Avon

1 ZIP

B

Badger

1 ZIP

B

Baltic

1 ZIP

C

Batesland

1 ZIP

F

Bath

1 ZIP

A

Belle Fourche

1 ZIP

D

Beresford

1 ZIP

D

Big Stone City

1 ZIP

D

Bison

1 ZIP

C

Black Hawk

1 ZIP

D

Blunt

1 ZIP

D

Bonesteel

1 ZIP

C

Bowdle

1 ZIP

A

Box Elder

1 ZIP

F

Brandon

1 ZIP

B

Brentford

1 ZIP

C

Bridgewater

1 ZIP

D

Bristol

1 ZIP

B

Britton

1 ZIP

D

Brookings

1 ZIP

F

Bryant

1 ZIP

A

Buffalo

1 ZIP

F

Buffalo Gap

1 ZIP

F

Burke

1 ZIP

A

Canistota

1 ZIP

B

Canova

1 ZIP

D

Canton

1 ZIP

C

Carpenter

1 ZIP

F

Castlewood

1 ZIP

D

Centerville

1 ZIP

D

Chamberlain

1 ZIP

C

Chancellor

1 ZIP

B

Chester

1 ZIP

D

Claremont

1 ZIP

C

Clark

1 ZIP

C

Clear Lake

1 ZIP

A

Colman

1 ZIP

D

Colome

1 ZIP

C

Colton

1 ZIP

D

Conde

1 ZIP

B

Corona

1 ZIP

D

Corsica

1 ZIP

B

Cresbard

1 ZIP

A

Crooks

1 ZIP

D

Custer

1 ZIP

C

Dallas

1 ZIP

A

De Smet

1 ZIP

D

Deadwood

1 ZIP

D

Dell Rapids

1 ZIP

A

Delmont

1 ZIP

D

Doland

1 ZIP

B

Dupree

1 ZIP

B

Eagle Butte

1 ZIP

D

Eden

1 ZIP

D

Edgemont

1 ZIP

F

Egan

1 ZIP

C

Elk Point

1 ZIP

D

Elkton

1 ZIP

D

Ellsworth Afb

1 ZIP

A

Emery

1 ZIP

A

Estelline

1 ZIP

D

Ethan

1 ZIP

A

Eureka

1 ZIP

A

Fairburn

1 ZIP

D

Faith

1 ZIP

A

Faulkton

1 ZIP

D

Flandreau

1 ZIP

D

Florence

1 ZIP

C

Fort Meade

1 ZIP

D

Fort Pierre

1 ZIP

B

Fort Thompson

1 ZIP

D

Frankfort

1 ZIP

F

Frederick

1 ZIP

B

Freeman

1 ZIP

A

Fulton

1 ZIP

A

Garden City

1 ZIP

F

Garretson

1 ZIP

F

Gary

1 ZIP

A

Gayville

1 ZIP

B

Gettysburg

1 ZIP

A

Glencross

1 ZIP

D

Goodwin

1 ZIP

A

Gregory

1 ZIP

C

Grenville

1 ZIP

C

Groton

1 ZIP

A

Hamill

1 ZIP

D

Harrisburg

1 ZIP

A

Hartford

1 ZIP

B

Hayti

1 ZIP

B

Hecla

1 ZIP

C

Henry

1 ZIP

C

Hermosa

1 ZIP

B

Herreid

1 ZIP

B

Highmore

1 ZIP

D

Hill City

1 ZIP

D

Hitchcock

1 ZIP

A

Hosmer

1 ZIP

A

Hot Springs

1 ZIP

C

Hoven

1 ZIP

D

Howard

1 ZIP

B

Hudson

1 ZIP

B

Humboldt

1 ZIP

B

Hurley

1 ZIP

C

Huron

1 ZIP

F

Ipswich

1 ZIP

B

Irene

1 ZIP

B

Iroquois

1 ZIP

D

Isabel

1 ZIP

F

Java

1 ZIP

B

Jefferson

1 ZIP

C

Kadoka

1 ZIP

D

Kennebec

1 ZIP

C

Keystone

1 ZIP

C

Kimball

1 ZIP

C

Lake Andes

1 ZIP

D

Lake City

1 ZIP

F

Lake Norden

1 ZIP

A

Lake Preston

1 ZIP

B

Langford

1 ZIP

A

Lead

1 ZIP

D

Lemmon

1 ZIP

D

Lennox

1 ZIP

A

Leola

1 ZIP

B

Lesterville

1 ZIP

D

Letcher

1 ZIP

B

Lower Brule

1 ZIP

C

Madison

1 ZIP

D

Manderson

1 ZIP

D

Marion

1 ZIP

A

Martin

1 ZIP

F

Marvin

1 ZIP

F

Mc Intosh

1 ZIP

C

Mc Laughlin

1 ZIP

A

Mellette

1 ZIP

B

Menno

1 ZIP

A

Midland

1 ZIP

D

Milbank

1 ZIP

A

Miller

1 ZIP

D

Mission

1 ZIP

A

Mission Hill

1 ZIP

B

Mitchell

1 ZIP

C

Mobridge

1 ZIP

D

Montrose

1 ZIP

F

Morristown

1 ZIP

F

Mount Vernon

1 ZIP

B

Murdo

1 ZIP

A

New Effington

1 ZIP

B

New Underwood

1 ZIP

D

Newell

1 ZIP

C

Nisland

1 ZIP

F

North Sioux City

1 ZIP

B

Northville

1 ZIP

C

Oacoma

1 ZIP

C

Oelrichs

1 ZIP

D

Onida

1 ZIP

D

Oral

1 ZIP

D

Owanka

1 ZIP

F

Parker

1 ZIP

C

Parkston

1 ZIP

B

Peever

1 ZIP

B

Philip

1 ZIP

B

Pickstown

1 ZIP

B

Piedmont

1 ZIP

C

Pierpont

1 ZIP

B

Pierre

1 ZIP

A

Pine Ridge

1 ZIP

B

Plankinton

1 ZIP

C

Platte

1 ZIP

B

Pollock

1 ZIP

A

Presho

1 ZIP

C

Pukwana

1 ZIP

C

Ramona

1 ZIP

F

Ravinia

1 ZIP

A

Redfield

1 ZIP

A

Ridgeview

1 ZIP

D

Roscoe

1 ZIP

A

Rosebud

1 ZIP

C

Rosholt

1 ZIP

F

Roslyn

1 ZIP

C

Saint Lawrence

1 ZIP

F

Saint Onge

1 ZIP

F

Salem

1 ZIP

C

Scotland

1 ZIP

F

Selby

1 ZIP

C

Seneca

1 ZIP

B

Sisseton

1 ZIP

A

South Shore

1 ZIP

F

Spearfish

1 ZIP

D

Spencer

1 ZIP

C

Springfield

1 ZIP

C

Stephan

1 ZIP

B

Stickney

1 ZIP

A

Stratford

1 ZIP

F

Sturgis

1 ZIP

F

Summit

1 ZIP

D

Tabor

1 ZIP

A

Tea

1 ZIP

A

Timber Lake

1 ZIP

F

Tolstoy

1 ZIP

F

Toronto

1 ZIP

A

Trent

1 ZIP

D

Tripp

1 ZIP

F

Tulare

1 ZIP

C

Tyndall

1 ZIP

A

Utica

1 ZIP

B

Vale

1 ZIP

D

Valley Springs

1 ZIP

B

Veblen

1 ZIP

F

Vermillion

1 ZIP

A

Viborg

1 ZIP

C

Volga

1 ZIP

A

Volin

1 ZIP

A

Wagner

1 ZIP

B

Wakonda

1 ZIP

D

Wall

1 ZIP

D

Wallace

1 ZIP

D

Wanblee

1 ZIP

C

WARD

1 ZIP

F

Warner

1 ZIP

B

Wasta

1 ZIP

D

Watertown

1 ZIP

A

Waubay

1 ZIP

D

Webster

1 ZIP

A

Wentworth

1 ZIP

C

Wessington

1 ZIP

D

Wessington Springs

1 ZIP

A

Westport

1 ZIP

D

White

1 ZIP

C

White Lake

1 ZIP

A

White River

1 ZIP

C

Whitewood

1 ZIP

C

Willow Lake

1 ZIP

C

Wilmot

1 ZIP

D

Winner

1 ZIP

D

Wolsey

1 ZIP

C

Woonsocket

1 ZIP

D

Worthing

1 ZIP

D

Yankton

1 ZIP

D