Idaho Citizen Population By County in 2017 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2017, the citizen population for Idaho was 1,596,695 and represented 96.34% of the total Idaho population.

Among all Idaho counties, Ada had the highest citizen population (421.88K), followed by Canyon (196.16K), and Kootenai (148.97K).

In terms of percentages, Butte had the highest percentage of its population being citizens (99.62%), followed by Valley (99.56%), and Idaho (99.54%).

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.

You may also be interested in:
Idaho Citizen Voting-age Population By County in 2017

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

See this for other years:

Idaho Citizen Population By County in 2017

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County	Citizen Population	% of County Population
Ada	421880	96.96
Canyon	196155	94.75
Kootenai	148970	99.23
Bonneville	107075	96.98
Bannock	82015	97.50
Twin Falls	77620	94.37
Bingham	43685	96.29
Bonner	41330	98.75
Nez Perce	39760	99.36
Latah	37140	95.98
Madison	37040	96.86
Jefferson	26495	96.66
Elmore	24870	94.82
Payette	21885	95.82
Cassia	21485	91.54
Jerome	20095	87.22
Blaine	19520	90.43
Minidoka	18255	89.27
Gem	16380	97.21
Idaho	16200	99.54
Gooding	13600	90.01
Franklin	12760	97.26
Fremont	12465	96.70
Shoshone	12355	98.92
Boundary	11030	97.40
Owyhee	10420	91.52
Valley	10060	99.56
Teton	10055	93.32
Washington	9465	94.70
Benewah	8970	99.12
Clearwater	8425	98.71
Lemhi	7665	98.84
Power	7095	92.56
Boise	6910	99.14
Caribou	6735	98.18
Bear Lake	5905	99.41
Lincoln	4665	88.10
Oneida	4180	97.55
Custer	4120	99.52
Adams	3920	99.37
Lewis	3770	98.56
Butte	2605	99.62
Camas	845	95.48
Clark	830	78.67