Lewiston is a city and the county seat of Nez Perce County, Idaho, United States, in the state's north central region. It is the second-largest city in the northern Idaho region, behind Coeur d'Alene, and ninth-largest in the state. Lewiston is the principal city of the Lewiston, ID-WA Metropolitan Statistical Area, which includes all of Nez Perce County and Asotin County, Washington. As of the 2020 census, the population of Lewiston was 34,203 up from 31,894 in 2010. Lewiston is located at the confluence of the Snake River and Clearwater River, upstream and southeast of the Lower Granite Dam. dams (and their locks) on the Snake and Columbia River, Lewiston is reachable by some ocean-going vessels. of Lewiston (Idaho's only seaport) has the distinction of being the farthest inland port east of the West Coast. The Lewiston-Nez Perce County Airport serves the city by air. Lewiston was founded in 1861 in the wake of a gold rush which began the previous year near Pierce, northeast of Lewiston. The city was incorporated by the Washington Territorial Legislature in January 1863. In March 1863, Lewiston became the first capital of the newly created Idaho Territory. Its stint as seat of the new territory's government was short-lived, as a resolution to have the capital moved south to Boise was passed by the Idaho Territorial Legislature on December 7, 1864. Lewiston's main industries are agriculture, paper, and timber products, and light manufacturing. Ammunition manufacturing maintains a very important and growing presence in Lewiston, being the headquarters of ammunition makers CCI and Speer Bullet. The city is the primary regional transportation, retail, health care, and entertainment center of the surrounding area and serves as a recreation destination for the Hells Canyon National Recreation Area. Lewiston is home to Lewis–Clark State College, a public undergraduate college. Community activities in Lewiston include the Dogwood Festival, Hot August Nights, and the Lewiston Roundup. History The Nimiipuu (Nez Perce) have inhabited the area for thousands of years. The first people of European ancestry to visit the Lewiston area were members of the David Thompson expedition of 1803. Thompson was looking to establish fur trading posts for the Hudson's Bay Company of British North America (now Canada). Thompson established the first white settlement in Idaho, MacKenzie's Post. But it soon failed as the local Nez Perce tribe's men considered beaver trapping to be women's work, the tribe was migratory and