RANKING · 1990 CENSUS · 44 SHOWN OF 44

Least educated, Idaho counties · 1990

Idaho counties with the smallest share of adults 25+ holding a bachelor's degree or higher (1990 ACS). This list covers the 44 counties in Idaho that qualify, ranked against each other statewide. The median across all 44 is 13.3%.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS –

01Gem County, IDID21,7738.6%–

02Owyhee County, IDID12,6618.7%–

03Benewah County, IDID10,5088.8%–

04Minidoka County, IDID22,9119.0%–

05Shoshone County, IDID14,1309.0%–

06Payette County, IDID27,8249.8%–

07Washington County, IDID11,58310.3%–

08Adams County, IDID5,01310.8%–

09Jerome County, IDID26,36211.0%–

10Fremont County, IDID14,20811.1%–

11Power County, IDID8,24611.1%–

12Bear Lake County, IDID6,72711.4%–

13Clearwater County, IDID9,11811.4%–

14Jefferson County, IDID35,29711.8%–

15Caribou County, IDID7,25211.8%–

16Lemhi County, IDID8,47411.8%–

17Lincoln County, IDID5,60311.9%–

18Canyon County, IDID275,12312.0%–

19Idaho County, IDID17,87412.7%–

20Oneida County, IDID5,08512.9%–

21Bingham County, IDID51,15313.1%–

22Lewis County, IDID3,70413.2%–

23Twin Falls County, IDID97,53913.3%–

24Gooding County, IDID16,44613.3%–

25Boundary County, IDID13,99713.3%–

26Butte County, IDID2,78313.5%–

27Cassia County, IDID26,39714.0%–

28Clark County, IDID78314.1%–

29Franklin County, IDID15,88914.3%–

30Boise County, IDID8,54514.4%–

31Camas County, IDID1,31615.0%–

32Bonner County, IDID54,42015.2%–

33Nez Perce County, IDID42,90515.6%–

34Custer County, IDID4,63615.6%–

35Elmore County, IDID29,46515.8%–

36Kootenai County, IDID191,86416.0%–

37Teton County, IDID13,25417.4%–

38Madison County, IDID55,17219.2%–

39Valley County, IDID12,83119.4%–

40Bannock County, IDID91,59119.8%–

41Bonneville County, IDID135,77123.2%–

42Ada County, IDID546,14124.9%–

43Blaine County, IDID25,51733.0%–

44Latah County, IDID41,84235.8%–

SHOWING 1–44 OF 44

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS