Census 2010: Idaho › Counties

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Idaho by county

County name 2010 total population 2000 total population Total change
since 2000
2010 White population 2010 White percentage White change
since 2000
Ada County 392,365 300,904 30.4% 354,347 4,441 2,610 9,407 861 9,529 11,170 27,905 364,460 25.6% 159,471 90.3% 1.1% 0.7% 2.4% 0.2% 2.4% 2.8% 7.1% 92.9% 18.4% 11,026 26.8% 128.7% 25.2% 80.1% 92.2% 89.6% 65.4% 107.2% 26.8% 6.9%
Canyon County 188,923 131,441 43.7% 156,750 1,077 2,028 1,519 402 21,469 5,678 45,069 143,854 44.2% 69,409 83.0% 0.6% 1.1% 0.8% 0.2% 11.4% 3.0% 23.9% 76.1% 37.6% 5,805 43.5% 155.8% 81.1% 43.8% 128.4% 34.2% 64.8% 84.3% 34.5% 8.4%
Kootenai County 138,494 108,685 27.4% 130,844 416 1,781 961 129 1,041 3,322 5,268 133,226 16.0% 63,177 94.5% 0.3% 1.3% 0.7% 0.1% 0.8% 2.4% 3.8% 96.2% 11.2% 8,977 25.6% 127.3% 33.5% 78.3% 74.3% 61.9% 90.5% 108.4% 25.5% 14.2%
Bonneville County 104,234 82,522 26.3% 94,411 585 790 856 86 5,334 2,172 11,912 92,322 27.3% 39,731 90.6% 0.6% 0.8% 0.8% 0.1% 5.1% 2.1% 11.4% 88.6% 19.0% 3,102 23.3% 45.2% 47.7% 26.8% 53.6% 73.6% 80.1% 108.9% 20.2% 7.8%
Bannock County 82,839 75,565 9.6% 74,401 625 2,619 1,079 188 1,721 2,206 5,587 77,252 26.3% 33,191 89.8% 0.8% 3.2% 1.3% 0.2% 2.1% 2.7% 6.7% 93.3% 20.8% 2,509 7.8% 40.1% 19.2% 44.3% 54.1% 9.8% 47.5% 57.8% 7.3% 7.6%
Twin Falls County 77,230 64,284 20.1% 68,693 342 606 922 83 4,829 1,755 10,570 66,660 31.2% 31,072 88.9% 0.4% 0.8% 1.2% 0.1% 6.3% 2.3% 13.7% 86.3% 23.3% 2,312 15.6% 175.8% 32.6% 89.3% 56.6% 99.5% 35.3% 75.4% 14.4% 7.4%
Bingham County 45,607 41,735 9.3% 36,752 105 2,970 285 36 4,480 979 7,864 37,743 42.6% 16,141 80.6% 0.2% 6.5% 0.6% 0.1% 9.8% 2.1% 17.2% 82.8% 37.9% 1,142 6.8% 50.0% 6.1% 20.8% 176.9% 34.9% 9.4% 41.7% 4.3% 7.1%
Bonner County 40,877 36,835 11.0% 39,261 58 315 184 42 163 854 911 39,966 11.1% 24,669 96.0% 0.1% 0.8% 0.5% 0.1% 0.4% 2.1% 2.2% 97.8% 9.0% 7,569 10.4% 45.0% -2.2% 82.2% 147.1% 5.2% 36.4% 50.8% 10.3% 30.7%
Nez Perce County 39,265 37,410 5.0% 35,390 117 2,206 279 37 261 975 1,109 38,156 21.9% 17,438 90.1% 0.3% 5.6% 0.7% 0.1% 0.7% 2.5% 2.8% 97.2% 18.2% 1,197 3.3% 11.4% 11.0% 13.9% 37.0% 38.8% 63.3% 53.8% 4.0% 6.9%
Madison County 37,536 27,467 36.7% 35,235 185 99 352 55 1,059 551 2,218 35,318 17.1% 11,280 93.9% 0.5% 0.3% 0.9% 0.1% 2.8% 1.5% 5.9% 94.1% 11.8% 669 34.3% 184.6% 10.0% 125.6% 10.0% 72.8% 110.3% 105.8% 33.8% 5.9%
Latah County 37,244 34,935 6.6% 34,557 293 237 781 52 375 949 1,326 35,918 18.1% 15,988 92.8% 0.8% 0.6% 2.1% 0.1% 1.0% 2.5% 3.6% 96.4% 14.0% 1,280 5.3% 42.2% -9.5% 6.7% 57.6% 39.4% 54.1% 79.2% 5.0% 8.0%
Elmore County 27,038 29,130 -7.2% 22,213 733 270 768 105 1,830 1,119 4,118 22,920 42.3% 12,162 82.2% 2.7% 1.0% 2.8% 0.4% 6.8% 4.1% 15.2% 84.8% 35.6% 2,022 -10.7% -22.5% 4.2% 58.4% 94.4% 16.6% 18.2% 17.9% -10.6% 16.6%
Jefferson County 26,140 19,155 36.5% 23,844 52 203 103 23 1,514 401 2,641 23,499 23.3% 8,722 91.2% 0.2% 0.8% 0.4% 0.1% 5.8% 1.5% 10.1% 89.9% 22.1% 576 37.0% -1.9% 128.1% 134.1% 53.3% 17.0% 57.9% 38.5% 36.2% 6.6%
Cassia County 22,952 21,416 7.2% 18,781 64 178 108 16 3,266 539 5,724 17,228 43.1% 8,372 81.8% 0.3% 0.8% 0.5% 0.1% 14.2% 2.3% 24.9% 75.1% 35.5% 706 3.6% 77.8% 4.1% 36.7% 45.5% 26.5% 34.8% 42.6% -1.0% 8.4%
Payette County 22,623 20,578 9.9% 20,053 52 255 189 16 1,419 639 3,363 19,260 33.2% 8,945 88.6% 0.2% 1.1% 0.8% 0.1% 6.3% 2.8% 14.9% 85.1% 27.8% 683 8.0% 147.6% 42.5% 8.0% 166.7% 23.8% 33.4% 37.1% 6.3% 7.6%
Jerome County 22,374 18,342 22.0% 17,904 62 302 76 17 3,532 481 6,929 15,445 48.3% 8,101 80.0% 0.3% 1.3% 0.3% 0.1% 15.8% 2.1% 31.0% 69.0% 33.4% 561 12.2% 47.6% 139.7% 52.0% 88.9% 95.7% 35.5% 120.0% 1.7% 6.9%
Blaine County 21,376 18,991 12.6% 18,157 39 125 183 16 2,530 326 4,272 17,104 36.9% 15,050 84.9% 0.2% 0.6% 0.9% 0.1% 11.8% 1.5% 20.0% 80.0% 23.9% 6,227 5.4% 56.0% 101.6% 31.7% 23.1% 107.0% 9.0% 110.4% 0.8% 41.4%
Minidoka County 20,069 20,174 -0.5% 16,091 77 248 88 1 3,076 488 6,493 13,576 49.6% 7,665 80.2% 0.4% 1.2% 0.4% 0.0% 15.3% 2.4% 32.4% 67.6% 44.0% 495 2.2% 45.3% 39.3% 4.8% -75.0% -14.5% -4.1% 26.4% -9.7% 6.5%
Gem County 16,719 15,181 10.1% 15,616 20 94 84 13 519 373 1,336 15,383 20.7% 7,099 93.4% 0.1% 0.6% 0.5% 0.1% 3.1% 2.2% 8.0% 92.0% 18.3% 604 9.7% 81.8% -15.3% 55.6% 44.4% 8.1% 34.2% 27.2% 8.9% 8.5%
Idaho County 16,267 15,511 4.9% 15,259 42 480 68 7 103 308 421 15,846 15.3% 8,744 93.8% 0.3% 3.0% 0.4% 0.0% 0.6% 1.9% 2.6% 97.4% 12.5% 1,910 4.5% 223.1% 7.1% 70.0% 133.3% -27.0% 15.4% 73.3% 3.8% 21.8%
Gooding County 15,464 14,155 9.2% 12,481 37 127 72 11 2,368 368 4,344 11,120 45.9% 6,093 80.7% 0.2% 0.8% 0.5% 0.1% 15.3% 2.4% 28.1% 71.9% 34.7% 562 0.7% 12.1% 6.7% 118.2% 37.5% 103.1% -7.3% 80.0% -5.3% 9.2%
Fremont County 13,242 11,819 12.0% 11,855 46 93 29 13 1,007 199 1,694 11,548 27.1% 8,531 89.5% 0.3% 0.7% 0.2% 0.1% 7.6% 1.5% 12.8% 87.2% 23.5% 4,095 9.7% 142.1% 55.0% -32.6% 85.7% 43.4% 8.2% 35.0% 9.3% 48.0%
Franklin County 12,786 11,329 12.9% 12,064 28 53 15 7 419 200 838 11,948 16.5% 4,528 94.4% 0.2% 0.4% 0.1% 0.1% 3.3% 1.6% 6.6% 93.4% 12.6% 449 12.0% 133.3% 60.6% -6.2% 40.0% 8.3% 98.0% 41.8% 11.3% 9.9%
Shoshone County 12,765 13,771 -7.3% 12,174 26 183 47 12 68 255 380 12,385 13.4% 7,061 95.4% 0.2% 1.4% 0.4% 0.1% 0.5% 2.0% 3.0% 97.0% 10.7% 1,456 -7.8% 73.3% -12.4% 46.9% 20.0% 0.0% 6.7% 42.9% -8.3% 20.6%
Owyhee County 11,526 10,644 8.3% 8,757 23 495 62 1 1,916 272 2,979 8,547 48.6% 4,781 76.0% 0.2% 4.3% 0.5% 0.0% 16.6% 2.4% 25.8% 74.2% 45.3% 705 7.0% 43.8% 44.7% 24.0% -87.5% 9.1% -6.2% 21.1% 4.4% 14.7%
Boundary County 10,972 9,871 11.2% 10,398 29 189 62 6 58 230 402 10,570 15.6% 5,175 94.8% 0.3% 1.7% 0.6% 0.1% 0.5% 2.1% 3.7% 96.3% 13.7% 754 10.6% 81.2% -5.0% 8.8% -14.3% -31.8% 117.0% 20.0% 10.8% 14.6%
Washington County 10,198 9,977 2.2% 8,835 18 101 91 3 930 220 1,716 8,482 34.5% 4,529 86.6% 0.2% 1.0% 0.9% 0.0% 9.1% 2.2% 16.8% 83.2% 30.6% 495 1.1% 80.0% 53.0% -11.7% -57.1% 14.1% -6.4% 25.1% -1.4% 10.9%
Teton County 10,170 5,999 69.5% 8,709 25 35 48 12 1,193 148 1,721 8,449 32.3% 5,478 85.6% 0.2% 0.3% 0.5% 0.1% 11.7% 1.5% 16.9% 83.1% 24.0% 1,827 59.0% 150.0% 6.1% 336.4% -14.3% 195.3% 202.0% 144.1% 59.6% 33.4%
Valley County 9,862 7,651 28.9% 9,445 11 68 41 1 154 142 386 9,476 12.5% 11,789 95.8% 0.1% 0.7% 0.4% 0.0% 1.6% 1.4% 3.9% 96.1% 8.6% 7,396 28.0% 266.7% 28.3% 78.3% -66.7% 83.3% 32.7% 157.3% 26.3% 62.7%
Benewah County 9,285 9,171 1.2% 8,039 28 809 27 6 44 332 235 9,050 27.3% 4,629 86.6% 0.3% 8.7% 0.3% 0.1% 0.5% 3.6% 2.5% 97.5% 22.6% 792 -1.1% 154.5% -1.3% 92.9% 20.0% 91.3% 98.8% 65.5% 0.2% 17.1%
Clearwater County 8,761 8,930 -1.9% 8,225 18 194 61 9 73 181 268 8,493 15.6% 4,453 93.9% 0.2% 2.2% 0.7% 0.1% 0.8% 2.1% 3.1% 96.9% 12.2% 793 -2.9% 38.5% 7.2% 84.8% 80.0% 30.4% 3.4% 62.4% -3.1% 17.8%
Lemhi County 7,936 7,806 1.7% 7,654 18 57 30 3 44 130 181 7,755 10.1% 4,729 96.4% 0.2% 0.7% 0.4% 0.0% 0.6% 1.6% 2.3% 97.7% 9.2% 1,153 1.5% 125.0% 21.3% 114.3% 0.0% -26.7% -0.8% 6.5% 1.6% 24.4%
Power County 7,817 7,538 3.7% 5,867 22 179 32 7 1,523 187 2,328 5,489 49.4% 2,944 75.1% 0.3% 2.3% 0.4% 0.1% 19.5% 2.4% 29.8% 70.2% 41.3% 303 -7.1% 214.3% -27.8% 33.3% 133.3% 82.0% 79.8% 42.1% -7.0% 10.3%
Boise County 7,028 6,670 5.4% 6,703 15 55 29 5 58 163 249 6,779 13.8% 5,292 95.4% 0.2% 0.8% 0.4% 0.1% 0.8% 2.3% 3.5% 96.5% 13.0% 2,318 5.5% 87.5% -11.3% 45.0% -28.6% -33.3% 21.6% 9.2% 5.2% 43.8%
Caribou County 6,963 7,304 -4.7% 6,637 4 23 15 15 163 106 336 6,627 13.5% 3,226 95.3% 0.1% 0.3% 0.2% 0.2% 2.3% 1.5% 4.8% 95.2% 10.7% 620 -5.5% 0.0% 53.3% 150.0% 66.7% 1.2% 21.8% 16.3% -5.5% 19.2%
Bear Lake County 5,986 6,411 -6.6% 5,767 6 29 22 1 97 64 216 5,770 10.8% 3,914 96.3% 0.1% 0.5% 0.4% 0.0% 1.6% 1.1% 3.6% 96.4% 7.1% 1,633 -7.9% 0.0% -14.7% 340.0% -66.7% 40.6% 93.9% 40.3% -7.8% 41.7%
Lincoln County 5,208 4,044 28.8% 4,171 19 38 20 3 844 113 1,476 3,732 45.7% 1,976 80.1% 0.4% 0.7% 0.4% 0.1% 16.2% 2.2% 28.3% 71.7% 30.0% 271 19.3% 0.0% -22.4% 11.1% 50.0% 121.5% 44.9% 172.3% 6.6% 13.7%
Custer County 4,368 4,342 0.6% 4,209 8 27 10 4 66 44 176 4,192 11.7% 3,103 96.4% 0.2% 0.6% 0.2% 0.1% 1.5% 1.0% 4.0% 96.0% 10.9% 1,167 -0.4% n/a 12.5% 900.0% 300.0% 29.4% 7.3% -3.8% 0.8% 37.6%
Oneida County 4,286 4,125 3.9% 4,144 9 22 20 1 46 44 126 4,160 9.9% 1,906 96.7% 0.2% 0.5% 0.5% 0.0% 1.1% 1.0% 2.9% 97.1% 6.7% 361 3.0% 80.0% 69.2% 233.3% -66.7% -17.9% 120.0% 32.6% 3.2% 18.9%
Adams County 3,976 3,476 14.4% 3,821 5 39 16 2 26 67 94 3,882 10.7% 2,636 96.1% 0.1% 1.0% 0.4% 0.1% 0.7% 1.7% 2.4% 97.6% 8.4% 888 14.2% 150.0% -20.4% 220.0% 100.0% -18.8% 67.5% 74.1% 13.4% 33.7%
Lewis County 3,821 3,747 2.0% 3,450 14 180 17 5 63 92 128 3,693 21.0% 1,880 90.3% 0.4% 4.7% 0.4% 0.1% 1.6% 2.4% 3.3% 96.7% 16.4% 223 -0.1% 7.7% 25.0% 6.2% 66.7% 80.0% 13.6% 80.3% 0.5% 11.9%
Butte County 2,891 2,899 -0.3% 2,761 6 13 5 5 59 42 119 2,772 12.5% 1,354 95.5% 0.2% 0.4% 0.2% 0.2% 2.0% 1.5% 4.1% 95.9% 13.4% 225 0.6% -25.0% -35.0% -28.6% n/a -14.5% -17.6% -0.8% -0.3% 16.6%
Camas County 1,117 991 12.7% 1,051 3 6 1 0 20 36 75 1,042 19.7% 831 94.1% 0.3% 0.5% 0.1% 0.0% 1.8% 3.2% 6.7% 93.3% 17.4% 344 11.5% -75.0% 100.0% -50.0% n/a 122.2% 63.6% 36.4% 11.3% 41.4%
Clark County 982 1,022 -3.9% 711 7 10 5 0 234 15 398 584 53.2% 531 72.4% 0.7% 1.0% 0.5% 0.0% 23.8% 1.5% 40.5% 59.5% 48.3% 186 -6.2% 600.0% 0.0% 150.0% -100.0% -2.5% 50.0% 13.7% -13.1% 35.0%
County name Total
households
Husband/wife
with children
Husband/wife
no children
Single male
with children
Single male
living alone
Single female
with children
Single female
living alone
Ada County 148,445 24.3% 28.1% 2.7% 11.1% 6.3% 14.0%
Canyon County 63,604 27.4% 29.3% 3.5% 8.9% 7.7% 11.2%
Kootenai County 54,200 20.9% 33.1% 3.0% 10.6% 6.1% 13.7%
Bonneville County 36,629 28.5% 30.3% 2.6% 10.5% 6.5% 11.9%
Bannock County 30,682 23.1% 29.1% 2.9% 12.0% 6.4% 12.9%
Twin Falls County 28,760 23.1% 31.0% 2.7% 10.7% 6.3% 13.7%
Bingham County 14,999 29.8% 32.6% 3.0% 8.6% 6.1% 9.9%
Bonner County 17,100 16.9% 38.3% 2.8% 13.3% 4.8% 12.7%
Nez Perce County 16,241 16.5% 32.3% 2.6% 13.3% 6.0% 15.3%
Madison County 10,611 33.6% 34.0% 0.9% 4.2% 2.5% 6.0%
Latah County 14,708 18.1% 28.2% 2.0% 14.4% 3.8% 13.9%
Elmore County 10,140 26.4% 30.2% 2.7% 12.7% 6.7% 11.1%
Jefferson County 8,146 37.5% 33.0% 2.3% 7.0% 4.6% 8.1%
Cassia County 7,666 29.8% 31.1% 2.9% 9.6% 5.6% 11.8%
Payette County 8,262 23.7% 33.7% 3.2% 9.7% 6.2% 12.4%
Jerome County 7,540 28.5% 30.3% 3.9% 9.6% 6.1% 10.7%
Blaine County 8,823 22.5% 29.3% 2.7% 14.7% 5.3% 14.1%
Minidoka County 7,170 25.2% 34.6% 3.0% 9.8% 5.3% 12.2%
Gem County 6,495 19.9% 37.1% 2.5% 10.7% 4.9% 13.6%
Idaho County 6,834 15.9% 39.8% 2.4% 15.6% 3.7% 13.0%
Gooding County 5,531 25.4% 31.0% 3.2% 11.5% 5.6% 12.7%
Fremont County 4,436 29.4% 36.5% 2.3% 10.4% 4.3% 9.4%
Franklin County 4,079 35.6% 35.0% 1.7% 8.9% 4.0% 9.0%
Shoshone County 5,605 14.5% 34.0% 3.1% 15.8% 4.9% 15.5%
Owyhee County 4,076 25.2% 32.1% 2.7% 12.8% 5.4% 10.2%
Boundary County 4,421 19.5% 35.5% 2.9% 14.1% 4.6% 13.3%
Washington County 4,034 18.6% 36.3% 2.6% 12.2% 5.5% 13.6%
Teton County 3,651 31.0% 28.0% 2.4% 12.8% 4.2% 9.1%
Valley County 4,393 16.4% 39.4% 2.3% 16.2% 4.0% 11.7%
Benewah County 3,837 16.6% 36.2% 3.0% 14.8% 5.5% 12.5%
Clearwater County 3,660 13.8% 40.9% 2.3% 16.0% 3.9% 13.4%
Lemhi County 3,576 14.7% 38.0% 2.0% 17.4% 4.2% 14.3%
Power County 2,641 27.0% 33.6% 3.1% 10.8% 6.3% 9.0%
Boise County 2,974 16.3% 43.3% 2.3% 16.3% 3.6% 9.0%
Caribou County 2,606 26.7% 37.6% 2.3% 10.6% 3.8% 12.4%
Bear Lake County 2,281 23.8% 39.5% 1.4% 11.7% 3.8% 12.2%
Lincoln County 1,705 31.3% 29.5% 3.5% 11.0% 4.4% 9.5%
Custer County 1,936 16.8% 38.8% 2.3% 17.7% 3.3% 12.4%
Oneida County 1,545 28.5% 37.4% 1.5% 11.3% 3.8% 11.3%
Adams County 1,748 14.5% 44.1% 2.2% 16.2% 3.5% 10.6%
Lewis County 1,657 15.5% 35.2% 2.7% 15.6% 4.6% 17.1%
Butte County 1,129 22.9% 35.9% 1.9% 15.1% 4.6% 11.2%
Camas County 487 18.3% 38.0% 3.7% 18.3% 3.3% 10.1%
Clark County 345 27.8% 29.6% 3.2% 13.3% 5.5% 11.0%
County name Family
households
Family
households %
Families
with kids
Families
with kids %
Non-family
households
Non-family
households %
Households
with seniors
Households
with seniors %
Ada County 99,282 66.9% 49,312 33.2% 49,163 33.1% 29,553 19.9%
Canyon County 47,481 74.7% 24,577 38.6% 16,123 25.3% 14,563 22.9%
Kootenai County 37,316 68.8% 16,258 30.0% 16,884 31.2% 14,256 26.3%
Bonneville County 26,787 73.1% 13,743 37.5% 9,842 26.9% 8,001 21.8%
Bannock County 20,836 67.9% 9,948 32.4% 9,846 32.1% 6,603 21.5%
Twin Falls County 19,954 69.4% 9,238 32.1% 8,806 30.6% 7,613 26.5%
Bingham County 11,731 78.2% 5,830 38.9% 3,268 21.8% 3,650 24.3%
Bonner County 11,591 67.8% 4,187 24.5% 5,509 32.2% 4,986 29.2%
Nez Perce County 10,331 63.6% 4,074 25.1% 5,910 36.4% 4,811 29.6%
Madison County 7,887 74.3% 3,927 37.0% 2,724 25.7% 1,429 13.5%
Latah County 8,241 56.0% 3,504 23.8% 6,467 44.0% 2,737 18.6%
Elmore County 7,135 70.4% 3,631 35.8% 3,005 29.6% 2,010 19.8%
Jefferson County 6,698 82.2% 3,617 44.4% 1,448 17.8% 1,748 21.5%
Cassia County 5,758 75.1% 2,936 38.3% 1,908 24.9% 2,056 26.8%
Payette County 6,017 72.8% 2,738 33.1% 2,245 27.2% 2,470 29.9%
Jerome County 5,656 75.0% 2,897 38.4% 1,884 25.0% 1,818 24.1%
Blaine County 5,575 63.2% 2,683 30.4% 3,248 36.8% 1,822 20.7%
Minidoka County 5,315 74.1% 2,401 33.5% 1,855 25.9% 2,118 29.5%
Gem County 4,611 71.0% 1,770 27.3% 1,884 29.0% 2,222 34.2%
Idaho County 4,536 66.4% 1,499 21.9% 2,298 33.6% 2,438 35.7%
Gooding County 3,927 71.0% 1,891 34.2% 1,604 29.0% 1,698 30.7%
Fremont County 3,436 77.5% 1,599 36.0% 1,000 22.5% 1,264 28.5%
Franklin County 3,259 79.9% 1,687 41.4% 820 20.1% 1,055 25.9%
Shoshone County 3,511 62.6% 1,264 22.6% 2,094 37.4% 1,855 33.1%
Owyhee County 2,954 72.5% 1,358 33.3% 1,122 27.5% 1,128 27.7%
Boundary County 2,976 67.3% 1,194 27.0% 1,445 32.7% 1,343 30.4%
Washington County 2,803 69.5% 1,076 26.7% 1,231 30.5% 1,443 35.8%
Teton County 2,509 68.7% 1,371 37.6% 1,142 31.3% 493 13.5%
Valley County 2,870 65.3% 996 22.7% 1,523 34.7% 1,136 25.9%
Benewah County 2,571 67.0% 965 25.1% 1,266 33.0% 1,220 31.8%
Clearwater County 2,397 65.5% 731 20.0% 1,263 34.5% 1,374 37.5%
Lemhi County 2,267 63.4% 749 20.9% 1,309 36.6% 1,253 35.0%
Power County 2,019 76.4% 963 36.5% 622 23.6% 680 25.7%
Boise County 2,051 69.0% 659 22.2% 923 31.0% 825 27.7%
Caribou County 1,936 74.3% 855 32.8% 670 25.7% 764 29.3%
Bear Lake County 1,661 72.8% 664 29.1% 620 27.2% 755 33.1%
Lincoln County 1,271 74.5% 668 39.2% 434 25.5% 407 23.9%
Custer County 1,244 64.3% 435 22.5% 692 35.7% 600 31.0%
Oneida County 1,161 75.1% 522 33.8% 384 24.9% 471 30.5%
Adams County 1,185 67.8% 353 20.2% 563 32.2% 592 33.9%
Lewis County 1,041 62.8% 378 22.8% 616 37.2% 612 36.9%
Butte County 788 69.8% 333 29.5% 341 30.2% 357 31.6%
Camas County 326 66.9% 123 25.3% 161 33.1% 134 27.5%
Clark County 243 70.4% 126 36.5% 102 29.6% 94 27.2%
County name Under 10 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80 plus
Ada County 14.9% 14.1% 14.0% 14.4% 14.2% 12.9% 8.5% 4.1% 2.9%
Canyon County 18.1% 16.4% 13.1% 13.8% 12.3% 10.9% 8.2% 4.3% 2.8%
Kootenai County 13.3% 14.2% 12.0% 12.0% 13.5% 14.2% 11.1% 6.1% 3.6%
Bonneville County 18.7% 15.2% 13.5% 13.2% 11.9% 12.0% 8.0% 4.4% 3.1%
Bannock County 16.2% 14.6% 17.1% 12.7% 11.0% 12.3% 8.4% 4.7% 3.0%
Twin Falls County 15.9% 14.4% 13.9% 12.4% 11.8% 12.5% 9.2% 5.9% 4.0%
Bingham County 19.0% 16.7% 12.0% 12.2% 11.6% 12.4% 8.2% 5.0% 2.9%
Bonner County 11.1% 12.6% 8.7% 10.7% 13.2% 18.1% 14.6% 7.1% 3.8%
Nez Perce County 11.6% 13.1% 13.3% 11.0% 12.8% 14.1% 11.1% 7.3% 5.8%
Madison County 16.2% 19.1% 37.0% 7.7% 6.2% 6.0% 3.8% 2.3% 1.5%
Latah County 10.6% 15.7% 26.2% 10.6% 10.2% 11.6% 8.2% 4.1% 2.8%
Elmore County 17.0% 14.0% 19.0% 12.7% 12.4% 11.0% 7.2% 4.6% 2.2%
Jefferson County 20.8% 17.3% 11.9% 13.4% 11.5% 11.1% 7.5% 4.3% 2.2%
Cassia County 19.0% 17.1% 11.5% 11.9% 11.3% 11.7% 8.5% 5.3% 3.7%
Payette County 15.6% 15.7% 10.6% 11.7% 12.9% 12.6% 10.5% 6.9% 3.5%
Jerome County 18.2% 15.8% 13.7% 12.4% 12.2% 12.0% 8.3% 4.8% 2.7%
Blaine County 13.8% 12.2% 10.0% 13.3% 15.3% 16.7% 11.8% 4.6% 2.1%
Minidoka County 16.0% 16.2% 11.4% 11.1% 11.8% 13.4% 9.7% 6.0% 4.3%
Gem County 13.0% 14.0% 9.4% 10.0% 13.5% 14.9% 12.5% 7.7% 5.0%
Idaho County 10.7% 12.3% 8.5% 9.0% 12.4% 17.6% 15.6% 9.0% 4.9%
Gooding County 16.8% 15.6% 12.0% 12.1% 12.0% 11.6% 9.6% 6.3% 4.1%
Fremont County 17.5% 16.4% 11.7% 11.4% 11.7% 12.3% 9.7% 6.0% 3.2%
Franklin County 19.6% 18.1% 10.3% 12.7% 11.1% 11.2% 7.8% 5.3% 3.8%
Shoshone County 10.6% 12.6% 8.5% 10.4% 13.6% 16.6% 14.0% 8.7% 4.9%
Owyhee County 15.8% 16.0% 10.7% 12.5% 12.3% 13.0% 10.4% 6.0% 3.2%
Boundary County 13.0% 14.6% 8.7% 10.6% 12.5% 16.3% 13.5% 6.8% 3.9%
Washington County 12.4% 14.7% 8.4% 10.5% 11.8% 14.5% 13.2% 8.7% 5.6%
Teton County 18.2% 13.4% 12.4% 18.8% 14.9% 11.6% 6.5% 2.7% 1.5%
Valley County 10.5% 10.8% 8.1% 12.1% 13.4% 19.7% 15.7% 6.9% 2.9%
Benewah County 12.7% 13.3% 8.7% 9.7% 13.3% 16.5% 14.0% 8.1% 3.7%
Clearwater County 8.9% 11.0% 8.5% 9.7% 13.9% 17.0% 16.0% 9.9% 5.1%
Lemhi County 10.3% 11.3% 7.7% 8.7% 12.4% 17.8% 17.7% 8.9% 5.2%
Power County 17.7% 16.3% 12.0% 11.6% 11.9% 13.2% 9.1% 5.5% 2.6%
Boise County 10.2% 13.4% 5.7% 9.6% 14.0% 21.8% 16.8% 6.5% 2.0%
Caribou County 16.2% 14.7% 9.7% 11.9% 11.7% 14.4% 10.6% 6.8% 3.9%
Bear Lake County 14.6% 15.0% 8.8% 11.2% 11.2% 14.4% 12.3% 7.7% 5.0%
Lincoln County 18.3% 16.8% 12.0% 13.3% 11.8% 12.0% 8.1% 4.5% 3.1%
Custer County 9.6% 11.7% 8.1% 11.0% 13.4% 19.0% 15.7% 7.6% 4.0%
Oneida County 16.5% 15.7% 8.2% 10.6% 11.6% 14.7% 10.5% 7.2% 5.0%
Adams County 9.6% 11.4% 7.4% 9.2% 12.5% 19.8% 17.2% 9.4% 3.6%
Lewis County 12.7% 11.3% 9.2% 8.1% 12.1% 17.2% 14.5% 9.9% 4.9%
Butte County 14.8% 15.3% 7.9% 10.3% 11.5% 15.8% 12.4% 7.7% 4.3%
Camas County 12.1% 11.0% 8.9% 13.2% 14.4% 16.2% 15.3% 5.7% 3.1%
Clark County 17.8% 15.4% 13.5% 11.3% 12.5% 11.4% 9.2% 6.8% 2.0%
County name Total population Median age Male total Male percentage Female total Female percentage
Ada County 392,365 34.8 196,501 50.1% 195,864 49.9%
Canyon County 188,923 31.6 93,506 49.5% 95,417 50.5%
Kootenai County 138,494 38.9 68,257 49.3% 70,237 50.7%
Bonneville County 104,234 31.7 51,996 49.9% 52,238 50.1%
Bannock County 82,839 31.4 41,298 49.9% 41,541 50.1%
Twin Falls County 77,230 34.4 38,115 49.4% 39,115 50.6%
Bingham County 45,607 31.8 22,885 50.2% 22,722 49.8%
Bonner County 40,877 45.8 20,592 50.4% 20,285 49.6%
Nez Perce County 39,265 40.8 19,468 49.6% 19,797 50.4%
Madison County 37,536 22.6 18,186 48.4% 19,350 51.6%
Latah County 37,244 28.3 19,163 51.5% 18,081 48.5%
Elmore County 27,038 30 13,971 51.7% 13,067 48.3%
Jefferson County 26,140 30 13,114 50.2% 13,026 49.8%
Cassia County 22,952 32 11,612 50.6% 11,340 49.4%
Payette County 22,623 37.2 11,191 49.5% 11,432 50.5%
Jerome County 22,374 31.7 11,429 51.1% 10,945 48.9%
Blaine County 21,376 40.4 10,886 50.9% 10,490 49.1%
Minidoka County 20,069 35.3 10,154 50.6% 9,915 49.4%
Gem County 16,719 42.9 8,283 49.5% 8,436 50.5%
Idaho County 16,267 48 8,492 52.2% 7,775 47.8%
Gooding County 15,464 34.3 7,999 51.7% 7,465 48.3%
Fremont County 13,242 33.5 6,963 52.6% 6,279 47.4%
Franklin County 12,786 31.5 6,486 50.7% 6,300 49.3%
Shoshone County 12,765 46.2 6,424 50.3% 6,341 49.7%
Owyhee County 11,526 36 5,895 51.1% 5,631 48.9%
Boundary County 10,972 42.8 5,549 50.6% 5,423 49.4%
Washington County 10,198 43.6 5,017 49.2% 5,181 50.8%
Teton County 10,170 33.2 5,321 52.3% 4,849 47.7%
Valley County 9,862 46.9 5,107 51.8% 4,755 48.2%
Benewah County 9,285 44.8 4,732 51.0% 4,553 49.0%
Clearwater County 8,761 49 4,739 54.1% 4,022 45.9%
Lemhi County 7,936 49.7 4,049 51.0% 3,887 49.0%
Power County 7,817 33.2 4,025 51.5% 3,792 48.5%
Boise County 7,028 48.4 3,671 52.2% 3,357 47.8%
Caribou County 6,963 37.7 3,509 50.4% 3,454 49.6%
Bear Lake County 5,986 40.5 2,972 49.6% 3,014 50.4%
Lincoln County 5,208 32 2,691 51.7% 2,517 48.3%
Custer County 4,368 48 2,318 53.1% 2,050 46.9%
Oneida County 4,286 39.1 2,191 51.1% 2,095 48.9%
Adams County 3,976 50 2,041 51.3% 1,935 48.7%
Lewis County 3,821 48 1,916 50.1% 1,905 49.9%
Butte County 2,891 41.7 1,485 51.4% 1,406 48.6%
Camas County 1,117 44.3 582 52.1% 535 47.9%
Clark County 982 32.7 543 55.3% 439 44.7%

* The USA TODAY Diversity Index represents the probability that two people from this area will have different ethnic backgrounds. A higher number reflects a more ethnically diverse population.

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Credits: Ryan Pitts, Mike Tigas Special thanks: USA Today Census team