Boise County Flag

Boise County

State:
Idaho
County Seat:
Idaho City

Boise County's estimated 2026 population is 8,584 with a growth rate of 0.46% in the past year according to the most recent United States census data. Boise County is the 32nd largest county in Idaho. The 2010 population was 7,005 and has seen a growth of 22.54% since that time.

8,584
Total Population
5
Population Density (mi²)
32
Population Rank (State)
39 0.46%
Annual Population Growth

Boise County Population

Demographics

Economics and Income Statistics