Idaho Citizen Population By County in 2015 (ACS-5Yrs)

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2015, the citizen population for Idaho was 1,553,615 and represented 96.11% of the total Idaho population.

Among all Idaho counties, Ada had the highest citizen population (402.42K), followed by Canyon (187.82K), and Kootenai (143.91K).

In terms of percentages, Adams had the highest percentage of its population being citizens (99.87%), followed by Valley (99.64%), and Lemhi (99.62%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.