Lewiston is a city in
north central Idaho and the
county seat of
Nez Perce County. 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 - Clarkston, WA Metropolitan Statistical Area, which includes all of Nez Perce County and
Asotin County, Washington. As of the
2010 census, the population of Lewiston was 31,894, up from 30,904 in 2000.