Idaho leads country in Population Growth Rate in 2021

Idaho’s annual population growth led the other 49 states and Washington, D.C., in percent increase for the fifth consecutive year.

From 2020 to 2021 the state saw a 2.9% increase in population. The state gained 53,151 new residents – the ninth-largest numeric change in the nation – for a new population estimate of 1.9 million.

Idaho’s neighboring states of Utah and Montana ranked second and third respectively, each growing by 1.7%.

Domestic migration, or people moving from other states, was the primary driving component of Idaho’s population growth.