Blaine County
Also known as Blaine County, Idaho, Blaine County, ID
county in Idaho, United States
Key facts
- Country
- United States
- State
- Idaho
- Founded
- March 5, 1895
- Named after
- James G. Blaine
- Seat
- Hailey
- Largest city
- Hailey
- Total
- 2,661 sq mi (6,890 km )
- Land
- 2,644 sq mi (6,850 km )
- Water
- 17 sq mi (44 km ) 0.6%
- Estimate 2025
- 25,517
- Density
- 9.1/sq mi (3.5/km )
- Time zone
- UTC−7 ( Mountain )
- Summer dst
- UTC−6 ( MDT )
~13 min read
Article
Blaine County is a county in the U.S. state of Idaho. As of the 2020 United States census, the population was 24,272. The county seat and largest city is Hailey. It is also home to the Sun Valley ski resort, adjacent to Ketchum.
Blaine County was created by the territorial legislature on March 5, 1895, by combining Alturas and Logan counties; it was named for former congressman and 1884 Republican presidential nominee James G. Blaine. Its present boundaries were set on February 8, 1917, when a western portion was partitioned off to form Camas County.