Population of Counties in Idaho (2017)

Name 2017 Population Growth Rate
Ada County444,02812.85%
Canyon County211,69811.78%
Kootenai County154,31111.11%
Bonneville County112,2327.21%
Bannock County84,3771.62%
Twin Falls County83,5147.71%
Bingham County45,201-1.24%
Bonner County42,5363.95%
Nez Perce County40,3692.62%
Latah County39,1965.15%
Madison County39,0483.84%
Jefferson County27,8396.17%
Elmore County26,018-4.05%
Cassia County23,5041.78%
Payette County23,0261.71%
Jerome County22,9942.36%
Blaine County21,7912.29%
Minidoka County20,6162.65%
Gem County17,1843.05%
Idaho County16,156-0.88%
Gooding County15,185-1.90%
Franklin County13,4064.78%
Fremont County12,943-2.22%
Shoshone County12,452-2.34%
Boundary County11,6816.07%
Owyhee County11,389-0.73%
Teton County10,9607.95%
Valley County10,4967.33%
Washington County10,172-0.23%
Benewah County9,092-2.07%
Clearwater County8,497-1.55%
Lemhi County7,723-3.00%
Power County7,654-2.52%
Boise County7,1241.66%
Caribou County6,887-1.28%
Bear Lake County5,945-0.50%
Lincoln County5,2711.07%
Oneida County4,3431.16%
Custer County4,096-6.06%
Adams County3,900-1.39%
Lewis County3,8530.94%
Butte County2,501-13.97%
Camas County1,072-3.60%
Clark County860-12.16%