Idaho Counties Counties

| County | County_seat | License_Plate_Code | Year_founded | Population_2008_est_ | Population_Percentage | Area_sq_mi_ | Area_ |
|---|---|---|---|---|---|---|---|
| Ada | Boise | 1A | 1864 | 380920 | 25.00 % | 1060 | 1.21 % |
| Adams | Council | 2A | 1911 | 3499 | 00.23 % | 1370 | 1.57 % |
| Bannock | Pocatello | 1B | 1893 | 80812 | 05.30 % | 1147 | 1.31 % |
| Bear Lake | Paris | 2B | 1893 | 5798 | 00.38 % | 1049 | 1.20 % |
| Benewah | St. Maries | 3B | 1915 | 9352 | 00.61 % | 784 | 0.90 % |
| Bingham | Blackfoot | 4B | 1885 | 43903 | 02.88 % | 2120 | 2.42 % |
| Blaine | Hailey | 5B | 1895 | 21731 | 01.43 % | 2661 | 3.04 % |
| Boise | Idaho City | 6B | 1864 | 7504 | 00.49 % | 1907 | 2.18 % |
| Bonner | Sandpoint | 7B | 1907 | 41168 | 02.70 % | 1920 | 2.19 % |