Idaho is a state in the Pacific Northwest region of the United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyoming to the east, Nevada and Utah to the south, and Washington and Oregon to the west. The state's capital and largest city is Boise. With an area of 83,570 square miles (216,400 km2), Idaho is the 14th largest state by land area, but with a population of approximately 1.8 million, it ranks as the 13th least populous and the 6th least densely populated of the 50 U.S. states.
Boise is the capital and most populous city of the U.S. state of Idaho and is the county seat of Ada County. As of the 2020 census, there were 235,684 people residing in the city. On the Boise River in southwestern Idaho, it is 41 miles (66 km) east of the Oregon border and 110 miles (177 km) north of the Nevada border. The downtown area's elevation is 2,704 feet (824 m) above sea level.
The Territory of Wyoming was an organized incorporated territory of the United States that existed from July 25, 1868, until July 10, 1890, when it was admitted to the Union as the State of Wyoming. Cheyenne was the territorial capital. The boundaries of the Wyoming Territory were identical to those of the modern State of Wyoming.
The Territory of Idaho was an organized incorporated territory of the United States that existed from March 3, 1863, until July 3, 1890, when the final extent of the territory was admitted to the Union as Idaho.
The territory of the United States and its overseas possessions has evolved over time, from the colonial era to the present day. It includes formally organized territories, proposed and failed states, unrecognized breakaway states, international and interstate purchases, cessions, and land grants, and historical military departments and administrative districts. The last section lists informal regions from American vernacular geography known by popular nicknames and linked by geographical, cultural, or economic similarities, some of which are still in use today.
The Snake War (1864–1868) was an irregular war fought by the United States of America against the "Snake Indians," the settlers' term for Northern Paiute, Bannock and Western Shoshone bands who lived along the Snake River. Fighting took place in the states of Oregon, Nevada, and California, and in Idaho Territory. Total casualties from both sides of the conflict numbered 1,762 dead, wounded, or captured.
The Department of the Pacific or Pacific Department was a major command (Department) of the United States Army from 1853 to 1858. It replaced the Pacific Division, and was itself replaced by the Department of California and the Department of Oregon.
Fort Boise is either of two different locations in the Western United States, both in southwestern Idaho. The first was a Hudson's Bay Company (HBC) trading post near the Snake River on what is now the Oregon border, dating from the era when Idaho was included in the British fur company's Columbia District. After several rebuilds, the fort was ultimately abandoned in 1854, after it had become part of United States territory following settlement in 1846 of the northern boundary dispute.
The history of Idaho is an examination of the human history and social activity within the state of Idaho, one of the United States of America located in the Pacific Northwest area near the west coast of the United States and Canada. Other associated areas include southern Alaska, all of British Columbia, Washington, Oregon, western Montana and northern California and Nevada.
The following is an alphabetical list of articles related to the U.S. state of Wyoming.
The following is an alphabetical list of articles related to the U.S. state of Idaho.
The history of Idaho in the American Civil War is atypical, as the territory was far from the battlefields.
The following outline is provided as an overview of and topical guide to the U.S. state of Montana:
The following outline is provided as an overview of and topical guide to the U.S. state of Nevada:
The following outline is provided as an overview of and topical guide to the U.S. state of Oklahoma:
The following outline is provided as an overview of and topical guide to the U.S. state of Oregon:
The following outline is provided as an overview of and topical guide to the U.S. state of Washington:
The following outline is provided as an overview of and topical guide to the U.S. state of Wyoming:
The following chronology traces the territorial evolution of the U.S. State of Idaho.
The following is a timeline of the history of the city of Boise, Idaho, United States.
