RANKING · 2020 CENSUS · 36 SHOWN OF 36

Most sparsely populated, Idaho cities · 2020

Idaho cities with the fewest residents per square mile (2023). This list covers the 36 cities in Idaho that qualify, ranked against each other statewide.

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SAME RANKING BYCounties States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most densely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Preston, IDID6,177819+19%

02Eagle, IDID34,658935+174%

03Kuna, IDID31,525935+346%

04Star, IDID20,8741,143+519%

05Rathdrum, IDID13,2271,325+91%

06Hayden, IDID17,3631,479+70%

07Middleton, IDID12,6001,542+216%

08Pocatello, IDID58,7711,678+9%

09Burley, IDID12,4091,731+26%

10Weiser, IDID6,2491,888+5%

11Lewiston, IDID34,7171,958+11%

12Payette, IDID8,8131,987+15%

13Blackfoot, IDID13,3612,009+18%

14Sandpoint, IDID10,6452,020+26%

15Post Falls, IDID46,7152,075+123%

16Rigby, IDID5,7572,084+68%

17Jerome, IDID13,7312,182+59%

18Ammon, IDID20,1192,197+186%

19Mountain Home, IDID16,7792,268+43%

20Kimberly, IDID5,7982,275+77%

21Hailey, IDID10,0532,330+48%

22Idaho Falls, IDID71,7852,440+28%

23Chubbuck, IDID16,8232,508+61%

24Fruitland, IDID7,2132,529+60%

25Caldwell, IDID76,6292,551+131%

26Twin Falls, IDID56,2162,644+50%

27Shelley, IDID5,3032,650+25%

28Boise City, IDID238,4292,787+27%

29Nampa, IDID120,3842,882+93%

30Emmett, IDID8,9002,885+39%

31Rupert, IDID6,4602,954+8%

32Garden City, IDID13,0473,018+16%

33Meridian, IDID142,9883,191+237%

34Coeur d'Alene, IDID58,1793,390+58%

35Moscow, IDID26,7213,681+19%

36Rexburg, IDID40,3343,897+128%

SHOWING 1–36 OF 36

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES