Idaho Citizen Population By County in 2016 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2016, the citizen population for Idaho was 1,574,195 and represented 96.25% of the total Idaho population.

Among all Idaho counties, Ada had the highest citizen population (411.72K), followed by Canyon (192.22K), and Kootenai (146.60K).

In terms of percentages, Valley had the highest percentage of its population being citizens (99.70%), followed by Bear Lake (99.58%), and Custer (99.52%).

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.

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Idaho Citizen Voting-age Population By County in 2016

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Idaho Citizen Population By County in 2016

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County	Citizen Population	% of County Population
Ada	411715	96.69
Canyon	192215	94.79
Kootenai	146605	99.25
Bonneville	105550	96.84
Bannock	81685	97.46
Twin Falls	76490	94.49
Bingham	43200	95.45
Bonner	40995	99.05
Nez Perce	39720	99.31
Latah	37085	96.09
Madison	36895	96.80
Jefferson	26285	97.01
Elmore	24780	94.92
Payette	21825	95.83
Cassia	21515	91.79
Jerome	19650	86.58
Blaine	19480	90.92
Minidoka	18030	88.69
Gem	16410	97.36
Idaho	16150	99.39
Gooding	13480	88.95
Franklin	12685	97.46
Shoshone	12415	98.92
Fremont	12405	96.20
Boundary	10965	98.43
Owyhee	10420	91.77
Valley	9865	99.70
Washington	9610	95.77
Teton	9565	91.66
Benewah	8980	99.01
Clearwater	8460	99.18
Lemhi	7680	99.16
Power	7020	91.23
Boise	6835	99.20
Caribou	6690	98.17
Bear Lake	5905	99.58
Lincoln	4735	89.51
Oneida	4195	98.24
Custer	4165	99.52
Adams	3845	99.48
Lewis	3775	98.69
Butte	2565	99.04
Camas	930	95.88
Clark	720	75.00