Table 1.  The Most Populous Counties and Incorporated Places in 2010 in Idaho:  2000 and 2010
(For information on confidentiality protection, nonsampling error, and definitions, see http://www.census.gov/prod/cen2010/pl94-171.pdf)
Population rank     Population Change, 2000 to 2010
             
2010 2000   Geographic area 2000 1 2010 Number Percent
             
    Idaho………...………………………………………………. 1 293 953 1 567 582  273 629 21.1
             
    COUNTY        
             
1 1   Ada County……………………………………………………….  300 904  392 365  91 461 30.4
2 2   Canyon County……………………………………………….  131 441  188 923  57 482 43.7
3 3   Kootenai County………………………………………………  108 685  138 494  29 809 27.4
4 4   Bonneville County………………………………………………  82 522  104 234  21 712 26.3
5 5   Bannock County………………………………………………  75 565  82 839  7 274 9.6
6 6   Twin Falls County……………………………………………  64 284  77 230  12 946 20.1
7 7   Bingham County……………………………………………  41 735  45 607  3 872 9.3
8 9   Bonner County…………………………………………………  36 835  40 877  4 042 11.0
9 8   Nez Perce County……………………………………………..  37 410  39 265  1 855 5.0
10 12   Madison County……………………………………………..  27 467  37 536  10 069 36.7
11 10   Latah County…………………………………………….  34 935  37 244  2 309 6.6
12 11   Elmore County……………………………………………….  29 130  27 038 - 2 092 -7.2
13 16   Jefferson County…………………………………………………..  19 155  26 140  6 985 36.5
14 13   Cassia County………………………………………………………..  21 416  22 952  1 536 7.2
15 14   Payette County………………………………………………..  20 578  22 623  2 045 9.9
16 18   Jerome County…………………………………………………………….  18 342  22 374  4 032 22.0
17 17   Blaine County………………………………………………..  18 991  21 376  2 385 12.6
18 15   Minidoka County…………………………………………………  20 174  20 069 -  105 -0.5
19 20   Gem County…………………………………………………  15 181  16 719  1 538 10.1
20 19   Idaho County…………………………………………………  15 511  16 267   756 4.9
             
    INCORPORATED PLACE        
             
1 1   Boise City city…………………………………………………  185 787  205 671  19 884 10.7
2 2   Nampa city……………………………………………………….  51 867  81 557  29 690 57.2
3 5   Meridian city…………………………………………………….  34 919  75 092  40 173 115.0
4 4   Idaho Falls city………………………………………………..  50 730  56 813  6 083 12.0
5 3   Pocatello city……………………………………………………  51 466  54 255  2 789 5.4
6 9   Caldwell city………………………………………………….  25 967  46 237  20 270 78.1
7 6   Coeur d'Alene city……………………………………………..  34 514  44 137  9 623 27.9
8 7   Twin Falls city…………………………………………………..  34 469  44 125  9 656 28.0
9 8   Lewiston city…………………………………………………  30 904  31 894   990 3.2
10 12   Post Falls city…………………………………………………  17 247  27 574  10 327 59.9
11 11   Rexburg city…………………………………………………..  17 257  25 484  8 227 47.7
12 10   Moscow city…………………………………………………  21 291  23 800  2 509 11.8
13 14   Eagle city…………………………………………….……………..  11 085  19 908  8 823 79.6
14 27   Kuna city………………………………………………………..  5 382  15 210  9 828 182.6
15 13   Mountain Home city………………………………………………….  11 143  14 206  3 063 27.5
16 17   Chubbuck city…………………………………………………..  9 700  13 922  4 222 43.5
17 24   Ammon city………………………………………………………  6 187  13 816  7 629 123.3
18 19   Hayden city………………………………………………………  9 159  13 294  4 135 45.1
19 16   Blackfoot city………………………………………………..  10 419  11 899  1 480 14.2
20 15   Garden City city………………………………………………..  10 624  10 972   348 3.3
               
1 Census 2000 counts are as published in Census 2000 reports and thus do not include any changes published subsequently due to boundary changes or to the Count Question Resolution program.
Source:  U.S. Census Bureau, Census 2000 Redistricting Data (Public Law 94-171) Summary File, Table PL1, and 2010 Census Redistricting Data (Public Law 94-171) Summary File, Table P1.