RANKING · 2000 CENSUS · 44 SHOWN OF 44

Most population lost, Idaho counties · 2000

Idaho counties that lost the most residents from the 1990 census to 2000, by raw count of people rather than percentage. This list covers the 44 counties in Idaho that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS –

01Shoshone County, IDID14,130-160–

02Butte County, IDID2,783-19–

03Custer County, IDID4,636+209–

04Adams County, IDID5,013+222–

05Lewis County, IDID3,704+231–

06Clark County, IDID783+260–

07Camas County, IDID1,316+264–

08Bear Lake County, IDID6,727+327–

09Caribou County, IDID7,252+341–

10Clearwater County, IDID9,118+425–

11Power County, IDID8,246+452–

12Oneida County, IDID5,085+633–

13Lincoln County, IDID5,603+736–

14Minidoka County, IDID22,911+813–

15Fremont County, IDID14,208+882–

16Lemhi County, IDID8,474+907–

17Benewah County, IDID10,508+1,234–

18Washington County, IDID11,583+1,427–

19Boundary County, IDID13,997+1,539–

20Valley County, IDID12,831+1,542–

21Idaho County, IDID17,874+1,728–

22Cassia County, IDID26,397+1,884–

23Franklin County, IDID15,889+2,097–

24Owyhee County, IDID12,661+2,252–

25Gooding County, IDID16,446+2,522–

26Teton County, IDID13,254+2,560–

27Jefferson County, IDID35,297+2,612–

28Boise County, IDID8,545+3,161–

29Jerome County, IDID26,362+3,204–

30Gem County, IDID21,773+3,337–

31Nez Perce County, IDID42,905+3,656–

32Madison County, IDID55,172+3,793–

33Payette County, IDID27,824+4,144–

34Bingham County, IDID51,153+4,152–

35Latah County, IDID41,842+4,318–

36Blaine County, IDID25,517+5,439–

37Elmore County, IDID29,465+7,925–

38Bannock County, IDID91,591+9,539–

39Bonner County, IDID54,420+10,213–

40Bonneville County, IDID135,771+10,315–

41Twin Falls County, IDID97,539+10,704–

42Kootenai County, IDID191,864+38,890–

43Canyon County, IDID275,123+41,365–

44Ada County, IDID546,141+95,129–

SHOWING 1–44 OF 44

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