RANKING · 1990 CENSUS · 44 SHOWN OF 44

Most educated, Idaho counties · 1990

Idaho counties ranked by the 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.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDMost college graduates Least educated Most graduate degrees Fewest graduate degrees

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPBACHELOR'S DEGREE OR HIGHERVS –

01Latah County, IDID41,84235.8%–

02Blaine County, IDID25,51733.0%–

03Ada County, IDID546,14124.9%–

04Bonneville County, IDID135,77123.2%–

05Bannock County, IDID91,59119.8%–

06Valley County, IDID12,83119.4%–

07Madison County, IDID55,17219.2%–

08Teton County, IDID13,25417.4%–

09Kootenai County, IDID191,86416.0%–

10Elmore County, IDID29,46515.8%–

11Custer County, IDID4,63615.6%–

12Nez Perce County, IDID42,90515.6%–

13Bonner County, IDID54,42015.2%–

14Camas County, IDID1,31615.0%–

15Boise County, IDID8,54514.4%–

16Franklin County, IDID15,88914.3%–

17Clark County, IDID78314.1%–

18Cassia County, IDID26,39714.0%–

19Butte County, IDID2,78313.5%–

20Boundary County, IDID13,99713.3%–

21Gooding County, IDID16,44613.3%–

22Twin Falls County, IDID97,53913.3%–

23Lewis County, IDID3,70413.2%–

24Bingham County, IDID51,15313.1%–

25Oneida County, IDID5,08512.9%–

26Idaho County, IDID17,87412.7%–

27Canyon County, IDID275,12312.0%–

28Lincoln County, IDID5,60311.9%–

29Lemhi County, IDID8,47411.8%–

30Caribou County, IDID7,25211.8%–

31Jefferson County, IDID35,29711.8%–

32Clearwater County, IDID9,11811.4%–

33Bear Lake County, IDID6,72711.4%–

34Power County, IDID8,24611.1%–

35Fremont County, IDID14,20811.1%–

36Jerome County, IDID26,36211.0%–

37Adams County, IDID5,01310.8%–

38Washington County, IDID11,58310.3%–

39Payette County, IDID27,8249.8%–

40Shoshone County, IDID14,1309.0%–

41Minidoka County, IDID22,9119.0%–

42Benewah County, IDID10,5088.8%–

43Owyhee County, IDID12,6618.7%–

44Gem County, IDID21,7738.6%–

SHOWING 1–44 OF 44

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