- Geographic Center: Settlement of Custer on the Yankee Fork River, Custer County.
- Governor: Office of Governor
- Highest Point: Borah Peak; 12,662 feet, 11th
- Highway Markers: Idaho Resource Manual
- History: Historical
- Internet Service Providers: Idaho
- Largest City: Boise Nampa Pocatello Idaho Falls Meridian Coeur d'Alene Twin Falls Lewiston Caldwell Moscow

- Library: Idaho Idaho Libraries

- License Plates: Idaho
- Local Resources: Idaho Courts Idaho Fire Departments Idaho Counseling Services Idaho Police Departments Idaho Government Offices
- Lowest Point: Snake River; 710 feet, 44th
- Maps: Rand McNally
DMOZ Blank Outline Map 50states List
- Media: Radio TV
- Motto: Esto perpetua (Let it be perpetual)
- Museums: The Virtual Library
- National Forest: Idaho
- Newspapers: Idaho
- Nickname: Gem State
- Nursing Schools: Idaho
- Origin of state's name: Idaho is a coined or invented word, and is not a derivation of an Indian phrase "E Dah Hoe (How)" supposedly meaning "gem of the mountains."
- Pen Pals: Penpalworld.com
- Permanent Residents: Find A Grave
- Population: Quick facts 1,293,953; 39th, 12/00
- Public Records: Idaho
- Real Estate: Idaho Real Estate
- Representatives:
- Road Side America: Idaho
- School Directory: Idaho Schools
Public Schools Private Schools
- Soil: Idaho - Threebear
- Song: Here We Have Idaho 50states List Sheet Music
- words by: McKinley Helm & Albert J. Tompkins
- music by: Sallie Hume-Douglas
- Sports: Idaho Teams
- State Parks: Idaho
- State Quarters: Idaho
- Symbols: Idaho State Symbols
- Topography: Image Snake River plains in the south, central region of mountains, canyons gorges; subalpine northern region.
- Travel: Idaho Travel
- Tree: Western WhitePine Pinus monticola
- Unclaimed Funds: Idaho
- Veteran Affairs: Idaho IDVS Military Links
- Vital Records: Idaho Vital Records
- Weather: Boise, Boise Air Terminal
- White Pages: Idaho White Pages
- Yellow Pages: Idaho Yellow Pages
- Zip Codes: Idaho Zip Codes
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