RANKING · 2020 CENSUS · 36 SHOWN OF 36

Fastest shrinking, Idaho cities · 2020

Idaho cities with the steepest population decline from the 2010 census to 2020. This list covers the 36 cities in Idaho that qualify, ranked against each other statewide.

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IdahoAll statesPop > 5KAll rankings

SAME RANKING BYCounties States Metros

YEAR2000 2010 2020 2024

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Weiser, IDID6,249+2.2%−87%

02Blackfoot, IDID13,361+3.8%−53%

03Pocatello, IDID58,771+3.8%−68%

04Moscow, IDID26,721+6.9%−54%

05Lewiston, IDID34,717+7.2%−28%

06Preston, IDID6,177+7.4%−72%

07Shelley, IDID5,303+8.5%+9%

08Payette, IDID8,813+9.3%−64%

09Rupert, IDID6,460+9.5%+173%

10Chubbuck, IDID16,823+11.8%−49%

11Garden City, IDID13,047+12.2%−82%

12Mountain Home, IDID16,779+12.5%−69%

13Burley, IDID12,409+13.1%+91%

14Jerome, IDID13,731+13.4%−30%

15Idaho Falls, IDID71,785+14.1%−9%

16Boise City, IDID238,429+14.6%−69%

17Hailey, IDID10,053+15.1%−78%

18Emmett, IDID8,900+16.6%−14%

19Hayden, IDID17,363+17.1%−88%

20Sandpoint, IDID10,645+17.3%−44%

21Twin Falls, IDID56,216+17.4%−30%

22Nampa, IDID120,384+22.9%−72%

23Coeur d'Alene, IDID58,179+23.8%−41%

24Rigby, IDID5,757+27.7%+134%

25Ammon, IDID20,119+28.1%+18%

26Fruitland, IDID7,213+29.6%−48%

27Caldwell, IDID76,629+29.8%−28%

28Rathdrum, IDID13,227+34.9%−75%

29Post Falls, IDID46,715+39.6%−71%

30Kimberly, IDID5,798+41.7%+295%

31Eagle, IDID34,658+52.4%−78%

32Rexburg, IDID40,334+54.6%+164%

33Meridian, IDID142,988+56.7%−79%

34Kuna, IDID31,525+57.9%−67%

35Middleton, IDID12,600+70.6%+31%

36Star, IDID20,874+91.9%–

SHOWING 1–36 OF 36

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS