Population Characteristics - Migration and natural change
(2010 - 2018)
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data: click here.
| County Name | Net Migration (%)
Rank | Net Migration (%) | Net Migration (Number) | Natural change (%) | Natural change (Number) |
| Ada | 1 | 14.8% | 58,094 | 4.9% | 19,128 |
| Kootenai | 2 | 13.8% | 19,111 | 2.8% | 3,822 |
| Canyon | 3 | 10.6% | 20,108 | 7.6% | 14,388 |
| Valley | 4 | 10.3% | 1,003 | 1.7% | 162 |
| Bonner | 5 | 9.6% | 3,917 | -0.2% | -89 |
| Boise | 6 | 9.4% | 660 | -1.0% | -67 |
| Adams | 7 | 7.7% | 305 | -1.0% | -38 |
| Boundary | 8 | 7.1% | 781 | 1.7% | 187 |
| Twin Falls | 9 | 6.3% | 4,858 | 5.2% | 4,031 |
| Gem | 10 | 5.4% | 899 | 0.1% | 17 |
| Teton | 11 | 5.1% | 521 | 9.2% | 936 |
| Clearwater | 12 | 4.2% | 360 | -4.2% | -363 |
| Nez Perce | 13 | 3.3% | 1,306 | -0.4% | -141 |
| Bonneville | 14 | 3.2% | 3,354 | 8.8% | 9,254 |
| Latah | 15 | 2.9% | 1,069 | 4.9% | 1,831 |
| Shoshone | 16 | 2.9% | 364 | -2.9% | -373 |
| Idaho | 17 | 2.7% | 439 | -1.1% | -179 |
| Lemhi | 18 | 2.5% | 198 | -2.2% | -176 |
| Jefferson | 19 | 2.2% | 580 | 10.3% | 2,711 |
| Oneida | 20 | 2.0% | 84 | 2.7% | 114 |
| Blaine | 21 | 1.3% | 278 | 4.4% | 937 |
| Lewis | 22 | 1.0% | 37 | 0.2% | 6 |
| Franklin | 23 | 0.8% | 106 | 6.5% | 830 |
| Washington | 24 | 0.5% | 47 | -0.8% | -80 |
| Benewah | 25 | 0.4% | 38 | -1.0% | -93 |
| Payette | 26 | 0.4% | 83 | 3.8% | 853 |
| Bannock | 27 | -0.8% | -647 | 6.0% | 4,955 |
| Jerome | 28 | -1.5% | -348 | 8.9% | 1,991 |
| Bear Lake | 29 | -1.6% | -94 | 2.6% | 156 |
| Caribou | 30 | -1.7% | -117 | 3.0% | 210 |
| Custer | 31 | -1.9% | -81 | -0.1% | -6 |
| Owyhee | 32 | -1.9% | -222 | 3.4% | 386 |
| Minidoka | 33 | -2.4% | -483 | 6.2% | 1,248 |
| Camas | 34 | -2.8% | -31 | 3.3% | 37 |
| Cassia | 35 | -2.9% | -671 | 6.8% | 1,567 |
| Lincoln | 36 | -3.0% | -157 | 5.9% | 307 |
| Bingham | 37 | -5.3% | -2,419 | 6.6% | 3,016 |
| Gooding | 38 | -5.3% | -819 | 3.5% | 536 |
| Fremont | 39 | -5.8% | -770 | 5.2% | 686 |
| Power | 40 | -8.2% | -647 | 7.4% | 582 |
| Elmore | 41 | -8.3% | -2,251 | 8.8% | 2,397 |
| Butte | 42 | -11.5% | -333 | 1.5% | 43 |
| Clark | 43 | -15.1% | -148 | 1.6% | 16 |
| Madison | 44 | -16.6% | -6,235 | 21.1% | 7,922 |
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