Idaho Map

Written and fact-checked by | Last Updated: May 27, 2026

Idaho is a state in the Pacific Northwest region of the United States.

Map of Idaho with Cities, Road, River, Highways

Map of Idaho About Map: Idaho Map showing the capital, state boundary, roads, rail network,rivers, interstate highways, major cities and towns.

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About Idaho State

Idaho, the 43rd state of the United States, lies in the Northwestern part of the country. The state of ID covers a total area of 83,570 sq miles, holding the rank of the 14th biggest state in the country.

It is an entirely landlocked state, sharing its boundaries with Oregon, Washington, Utah, Nevada, Montana, Wyoming, and the state of British Columbia in Canada. An Idaho Map is a wonderful means to make a decision regarding what to do and what to see in the Gem State. The state of ID is popular for its snow-covered mountains, rapidly flowing rivers, deserts, jungles, and wildlife. The capital of Idaho is Boise and it is also the largest city.

It is an entirely landlocked state, sharing its boundaries with Oregon, Washington, Utah, Nevada, Montana, Wyoming, and the state of British Columbia in Canada. An Idaho Map is a wonderful means to make a decision regarding what to do and what to see in the Gem State. The state of ID is popular for its snow-covered mountains, rapidly flowing rivers, deserts, jungles, and wildlife. The capital of Idaho is Boise and it is also the largest city.

Rivers and Lakes in Idaho

Alturas Lake, Brush Lake, Bear River, Boise River, Clearwater River, Dawson Lake, Dierkes Lake, Hayden Lake, Henry's Lake, Hidden Lake, Kootenai River, Lake Cascade, Lake Cleveland, Lake Coeur d'Alene, Lake Lowell, Lake Walcott, Pend Oreille, Little Redfish Lake, Lucky Peak Lake, Moyie River, North Fork Clearwater River, Pack River, Payette Lake, (McCall), Pettit Lake, Priest Lake, Perkins Lake, Portneuf River, Redfish Lake, Sawtooth Lake, Smith Lake, Snake River, Stanley Lake, St. Joe River, Warm Lake, Williams Lake

Interstate Highways in Idaho

NumberLength (mi)Southern or western terminusNorthern or eastern terminus
I-15196I-15 near WoodruffI-15 at Monida Pass
I-15W62.85I-84 / US 30 near DecloI-15 in Chubbuck
I-80N275.65I-84 near FruitlandI-84 near Black Pine
I-84275.65I-84 near FruitlandI-84 near Black Pine
I-8662.85I-84 / US 30 near DecloI-15 in Chubbuck
I-9073.888I-90 in State LineI-90 at Lookout Pass
I-180N3.62I-84 / US 30 in BoiseUS 20 / US 26 in Boise
I-1843.62I-84 / US 30 in BoiseUS 20 / US 26 in Boise

Point of Interest in Idaho

Craters of the Moon National MonumentBogus BasinIdaho Botanical GardenThousand Springs State Park - MaladBoise Art Museum
Shoshone Falls ParkRedfish LakeZoo Boise- Over 200 animals featuredHenrys LakePayette National Forest
Oregon TrailOld Idaho Penitentiary SiteFarragut State ParkRoaring Springs Water ParkLower Mesa Falls
Silverwood Theme ParkFrank Church - River of No ReturnBoise National ForestSawtooth LakeGoldbug Hot Springs
Schweitzer Mountain ResortCity of Rocks National ReserveJulia Davis ParkIdaho Panhandle National ForestsKelly Canyon Ski Resort
Silver Mountain ResortBrundage Mountain Idaho Ski ResortLookout Pass Ski & Recreation AreaYellowstone Bear WorldIdaho Falls Zoo at Tautphaus Park
Clark ForkBoise River GreenbeltPerrine Memorial BridgeHarriman State ParkPomerelle Mountain Resort
Upper Mesa FallsBald MountainPonderosa State ParkSalmon-Challis National ForestSoldier Mountain Ski Area

Idaho State Facts

State NameIdaho
NicknameThe Gem State
CountryUnited States
ContinentNorth America
Capital CityBoise
Largest CityBoise
AbbreviationID
State MottoEsto Perpetua
Bordering StatesWashington, Oregon, Nevada, Utah, Wyoming, Montana
State FlowerSyringa
State BirdMountain Bluebird
State AnimalAppaloosa Horse
Joined the UnionJuly 3, 1890
Area83,569 sq mi (216,443 sq km)
Major CitiesBoise, Meridian, Nampa, Idaho Falls, Pocatello
TimezoneMountain Time Zone, Pacific Time Zone
Population1,839,106 (2020 Census)
Highest PointBorah Peak - 12,662 ft (3,859 m)
Lowest PointSnake River - 710 ft (216 m)
Major RiversSnake River, Salmon River, Clearwater River, Boise River, Payette River
Major LakesLake Pend Oreille, Coeur d'Alene Lake, Bear Lake, American Falls Reservoir, Redfish Lake
Longest RiverSnake River
Famous ForPotatoes, mountains, outdoor recreation, whitewater rafting, national forests
AirportsBoise Airport, Idaho Falls Regional Airport, Friedman Memorial Airport, Spokane International Airport
Major Sports TeamBoise State Broncos, Idaho Steelheads
Major HighwaysUS Highway 20, US Highway 26, US Highway 30, US Highway 95, US Highway 93
State RoutesIdaho State Highway 21, Idaho State Highway 55, Idaho State Highway 75, Idaho State Highway 78, Idaho State Highway 200
Official Websitehttps://www.idaho.gov

List of the Largest Cities in Idaho by Population

CityCountyPopulation (2020 Census)Lat Long
BoiseAda County235,68443.6150,-116.2023
MeridianAda County117,63543.6121,-116.3915
NampaCanyon County100,20043.5407,-116.5635
Idaho FallsBonneville County64,81843.4917,-112.0333
PocatelloBannock County56,32042.8713,-112.4455
CaldwellCanyon County59,99643.6629,-116.6874
Coeur d'AleneKootenai County54,62847.6777,-116.7805
Twin FallsTwin Falls County51,80742.5629,-114.4609
Post FallsKootenai County38,48547.7177,-116.9500
LewistonNez Perce County34,20346.4165,-117.0177

Idaho Interstates

North-South interstates include: Interstate 15.

East-West interstates include: Interstate 84, Interstate 86 and Interstate 90.

Idaho State Routes

Idaho State Highway 21, Idaho State Highway 55, Idaho State Highway 75, Idaho State Highway 78, Idaho State Highway 95, Idaho State Highway 200.

Regions in Idaho

  • Treasure Valley
  • Magic Valley
  • Panhandle Region
  • Clearwater Region
  • Upper Snake River Valley
  • Wood River Valley
  • Salmon River Region
  • Southeast Idaho

Main Sights in Idaho

  • Shoshone Falls - Twin Falls
  • Sun Valley Resort - Sun Valley
  • Craters of the Moon National Monument - Arco
  • Lake Coeur d'Alene - Coeur d'Alene
  • Boise River Greenbelt - Boise
  • Hells Canyon National Recreation Area - Riggins
  • Sawtooth National Recreation Area - Stanley
  • Silverwood Theme Park - Athol
  • Bruneau Dunes State Park - Bruneau
  • Kirkham Hot Springs - Lowman
  • Idaho Falls River Walk - Idaho Falls
  • City of Rocks National Reserve - Almo

National Parks in Idaho

  • Craters of the Moon National Monument and Preserve
  • City of Rocks National Reserve
  • Hagerman Fossil Beds National Monument
  • Yellowstone National Park
  • Nez Perce National Historical Park
  • Minidoka National Historic Site