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ID tap water quality, city by city
217 cities and towns in ID are served by an active community water system in the EPA's records. Each page below translates that system's EPA-reported history into plain English.
According to EPA SDWIS data, retrieved June 2026.
- Aberdeen
- Ahsahka
- Albion
- American Falls
- Ammon
- Arco
- Arimo
- Ashton
- Athol
- Atlanta
- Atomic City
- Avery
- Bancroft
- Bayview
- Bellevue
- Bennington
- Blackfoot
- Blanchard
- Bliss
- Bloomington
- Boise
- Bonners Ferry
- Bovill
- Bruneau
- Buhl
- Burley
- Calder
- Caldwell
- Cambridge
- Carey
- Cascade
- Castleford
- Cataldo
- Challis
- Chubbuck
- Clark Fork
- Clarkia
- Clearwater
- Clifton
- Coeur D Alene
- Coeur D'Alene
- Coolin
- Cottonwood
- Council
- Craigmont
- Culdesac
- Dalton Gardens
- Dayton
- Deary
- Declo
- Dietrich
- Donnelly
- Dover
- Downey
- Driggs
- Dubois
- Eagle
- Eden
- Elk City
- Elk River
- Emmett
- Fairfield
- Fenn
- Ferdinand
- Fernwood
- Filer
- Firth
- Fish Haven
- Fort Hall
- Franklin
- Fruitland
- Gannett
- Garden City
- Garden Valley
- Genesee
- Georgetown
- Glenns Ferry
- Gooding
- Grace
- Grand View
- Grangeville
- Greenleaf
- Hagerman
- Hailey
- Hansen
- Harrison
- Harvard
- Hauser
- Hayden
- Hayden Lake
- Hazelton
- Heyburn
- Hollister
- Homedale
- Hope
- Horseshoe Bend
- Houston
- Howe
- Idaho City
- Idaho Falls
- Indian Valley
- Inkom
- Iona
- Jerome
- Juliaetta
- Kamiah
- Kellogg
- Kendrick
- Ketchum
- Kimberly
- King Hill
- Kingston
- Kooskia
- Kuna
- Lapwai
- Lava Hot Springs
- Lenore
- Lewiston
- Mackay
- Malad
- Marsing
- Mccall
- Mccammon
- Medimont
- Melba
- Meridain
- Meridian
- Middleton
- Minidoka
- Monteview
- Montpelier
- Moore
- Moreland
- Moscow
- Mountain Home
- Mountain Home Afb
- Moyie Springs
- Murphy
- Murray
- Murtaugh
- Nampa
- New Meadows
- New Plymouth
- Newdale
- Nezperce
- Notus
- Oakley
- Old Town
- Orofino
- Ovid
- Paris
- Parker
- Parma
- Paul
- Payette
- Peck
- Picabo
- Pierce
- Pinehurst
- Plummer
- Pocatello
- Ponderay
- Post Falls
- Potlatch
- Preston
- Priest Lake
- Priest River
- Princeton
- Rathdrum
- Reubens
- Rexburg
- Ribgy
- Richfield
- Rigby
- Riggins
- Ririe
- Roberts
- Rockland
- Rogerson
- Rupert
- Sagle
- Salmon
- Sandpoint
- Shelley
- Shoshone
- Soda Springs
- Spirit Lake
- Springfield
- St Anthony
- St Maries
- St. Charles
- Star
- Stites
- Sugar City
- Sun Valley
- Sun Valley
- Swan Lake
- Swan Valley
- Tensed
- Teton
- Tetonia
- Troy
- Twin Falls
- Ucon
- Uconn
- Victor
- Viola
- Wallace
- Weippe
- Weiser
- Wendell
- Weston
- White Bird
- Wilder
- Winchester
- Worley
- Yellow Pine