Idaho contains 201 cities. Based on population, the smallest cities in Idaho are #201 Warm River, #200 Clayton, #199 Drummond and #198 Atomic City. The estimated population as of July 1, 2015 per the U.S. Census Bureau is #201 Warm River - 3, #200 Clayton - 6, #199 Drummond - 15 and #198 Atomic City - 28.
Actually, the town of 'SMALL' is the smallest. You can't get any smaller than 'SMALL', Idaho. Located about 10 miles west of Dubois, Idaho.
There are 18 towns with populations under 15, taken from a road map and they are:
Note: Be aware that there are many more townships (probably 100 plus) that are not on a road map. I grew up in Easter Idaho and there are many little towns that are with small or no populations. All there may be is a church, store or railroad sign. As an example, between Blackfoot and Firth, Idaho, there are two signs on the railroad tracks that read of a township and they are 'Wapello & Kimball'. That's it. No town. Just a sign.
Aberdeen
American Falls
Ammon
Arco
Ashton
Athol
Atomic City
Bayview
Bellevue
Blackfoot
Blanchard
Bliss
Boise
Bonners Ferry
Bovill
Buhl
Burley
Caldwell
Cambridge
Cascade
Cavendish
Challis
Chubbuck
Clark Fork
Coeur d'Alene
Council
Craigmont
Culdesac
Dayton
Dalton Gardens
Deary
Dietrich
Donnelly
Downey
Driggs
Eagle
Edgemere
Elk City
Emmett
Fairfield
Fruitland
Garden City
Garden Valley
Genesee
Glenns Ferry
Gooding
Grace
Grand View
Grangeville
Hagerman
Hailey
Hamer
Hansen
Harrison
Hauser
Hayden
Heyburn
Homedale
Horseshoe Bend
Idaho City
Idaho Falls
Iona
Irwin
Island Park
Jerome
Juliaetta
Kamiah
Kellogg
Kendrick
Ketchum
Kimberly
Kooskia
Kuna
Laclede
Lapwai
Lava Hot Springs
Leadore
Lewiston
Mackay
Malad
Marsing
McCall
Melba
Menan
Meridian
Middleton
Midvale
Montpelier
Moreland
Moscow
Mountain Home
Murray
Nampa
New Meadows
New Plymouth
Nezperce
Nordman
Notus
Oldtown
Orofino
Osburn
Paris
Payette
Peck
Pierce
Pinehurst
Pingree
Pocatello
Post Falls
Potlatch
Preston
Priest Lake
Priest River
Rathdrum
Rexburg
Richfield
Rigby
Riggins
Ririe
Riverside
Rockford
Rupert
Saint Anthony
Saint Maries
Salmon
Sandpoint
Shelley
Shoshone
Soda Springs
Spirit Lake
Stanley
Star
Sugar City
Sun Valley
Terreton
Tetonia
Thomas
Troy
Twin Falls
Vay
Victor
Wallace
Weippe
Weiser
Wendell
White Bird
Wilder
Winchester
Payette County
Spanish
Potatoes
14th
The tenontosaurus
yes
oregon,wisconsin,utah
The state of Idaho.
i dnt know
The Gem State
Idaho's major export is potatoes.
Stuff that grows in dirt and you can eat.
Boise is Idaho's biggest city.