Least educated counties in Illinois

- 18.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 7.2% ($15,000 median earnings)
- High school graduate: 39.4% ($32,632)
- Some college or Associate's degree: 34.6% ($39,425)
- Bachelor's degree: 14.8% ($50,337)
- Graduate or professional degree: 4.1% ($69,688)

- 18.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 10.9% ($18,158 median earnings)
- High school graduate: 36.6% ($26,088)
- Some college or Associate's degree: 33.6% ($32,278)
- Bachelor's degree: 12.5% ($44,139)
- Graduate or professional degree: 6.5% ($61,743)

- 18.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 16.8% ($35,110 median earnings)
- High school graduate: 33.4% ($30,750)
- Some college or Associate's degree: 31% ($34,536)
- Bachelor's degree: 13.8% ($51,433)
- Graduate or professional degree: 5% ($61,189)

- 18.6% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 15.2% ($42,075 median earnings)
- High school graduate: 33.4% ($35,813)
- Some college or Associate's degree: 32.7% ($40,728)
- Bachelor's degree: 11.8% ($46,406)
- Graduate or professional degree: 6.9% ($51,364)

- 18.4% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 8.7% ($16,932 median earnings)
- High school graduate: 39.8% ($34,530)
- Some college or Associate's degree: 33.1% ($36,665)
- Bachelor's degree: 12.3% ($47,467)
- Graduate or professional degree: 6.1% ($61,269)

- 18.3% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 8.8% ($24,688 median earnings)
- High school graduate: 41.7% ($30,913)
- Some college or Associate's degree: 31.2% ($33,493)
- Bachelor's degree: 13.8% ($39,567)
- Graduate or professional degree: 4.6% ($51,897)

- 18.2% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 9.4% ($21,989 median earnings)
- High school graduate: 30.7% ($26,921)
- Some college or Associate's degree: 41.7% ($31,700)
- Bachelor's degree: 12% ($46,346)
- Graduate or professional degree: 6.2% ($54,167)

- 18.2% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 9.4% ($26,801 median earnings)
- High school graduate: 37.7% ($31,135)
- Some college or Associate's degree: 34.6% ($32,407)
- Bachelor's degree: 12.2% ($44,924)
- Graduate or professional degree: 6% ($62,210)

- 18.2% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 11.2% ($23,810 median earnings)
- High school graduate: 33.8% ($34,138)
- Some college or Associate's degree: 36.7% ($38,399)
- Bachelor's degree: 11.3% ($49,370)
- Graduate or professional degree: 6.9% ($72,063)

- 17.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 12.6% ($19,455 median earnings)
- High school graduate: 30.6% ($28,834)
- Some college or Associate's degree: 38.9% ($33,632)
- Bachelor's degree: 11% ($43,372)
- Graduate or professional degree: 7% ($67,010)

- 17.8% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 11.3% ($22,315 median earnings)
- High school graduate: 38.7% ($32,183)
- Some college or Associate's degree: 32.2% ($35,783)
- Bachelor's degree: 12.7% ($45,962)
- Graduate or professional degree: 5.1% ($42,063)

- 17.8% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 11.4% ($21,773 median earnings)
- High school graduate: 35.6% ($31,396)
- Some college or Associate's degree: 35.1% ($39,213)
- Bachelor's degree: 11.7% ($44,926)
- Graduate or professional degree: 6.1% ($61,675)

- 17.6% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 11.4% ($14,764 median earnings)
- High school graduate: 34.5% ($27,474)
- Some college or Associate's degree: 36.6% ($31,391)
- Bachelor's degree: 11.8% ($48,367)
- Graduate or professional degree: 5.7% ($52,898)

- 17.4% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 8.1% ($33,636 median earnings)
- High school graduate: 39.6% ($37,152)
- Some college or Associate's degree: 34.9% ($36,498)
- Bachelor's degree: 11.5% ($49,509)
- Graduate or professional degree: 5.9% ($55,476)

- 17.2% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 10% ($24,489 median earnings)
- High school graduate: 37.3% ($30,197)
- Some college or Associate's degree: 35.5% ($38,631)
- Bachelor's degree: 11.7% ($46,750)
- Graduate or professional degree: 5.5% ($51,176)

- 17.1% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 10.3% ($26,438 median earnings)
- High school graduate: 41.8% ($32,136)
- Some college or Associate's degree: 30.9% ($38,470)
- Bachelor's degree: 11.6% ($49,720)
- Graduate or professional degree: 5.4% ($63,061)

- 17.1% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 15% ($13,352 median earnings)
- High school graduate: 28.6% ($30,650)
- Some college or Associate's degree: 39.4% ($33,125)
- Bachelor's degree: 11.6% ($47,955)
- Graduate or professional degree: 5.5% ($63,309)

- 17% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 8.7% ($23,750 median earnings)
- High school graduate: 41.6% ($33,409)
- Some college or Associate's degree: 32.6% ($38,427)
- Bachelor's degree: 10.4% ($45,639)
- Graduate or professional degree: 6.6% ($80,417)

- 17% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 12.9% ($12,969 median earnings)
- High school graduate: 34.9% ($31,461)
- Some college or Associate's degree: 35.2% ($43,083)
- Bachelor's degree: 9.4% ($35,950)
- Graduate or professional degree: 7.6% ($63,170)

- 16.8% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 7.7% ($17,153 median earnings)
- High school graduate: 44.4% ($32,415)
- Some college or Associate's degree: 31.1% ($32,286)
- Bachelor's degree: 11.6% ($46,616)
- Graduate or professional degree: 5.2% ($50,188)

- 16.7% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 11.1% ($16,938 median earnings)
- High school graduate: 33% ($24,405)
- Some college or Associate's degree: 39.2% ($32,388)
- Bachelor's degree: 11% ($42,423)
- Graduate or professional degree: 5.7% ($57,366)

- 16.7% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 12.3% ($21,813 median earnings)
- High school graduate: 39.3% ($30,913)
- Some college or Associate's degree: 31.7% ($33,255)
- Bachelor's degree: 10.3% ($47,193)
- Graduate or professional degree: 6.4% ($53,601)

- 16.6% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 7.3% ($28,875 median earnings)
- High school graduate: 38.1% ($33,783)
- Some college or Associate's degree: 38.1% ($43,393)
- Bachelor's degree: 10.6% ($42,500)
- Graduate or professional degree: 6% ($61,042)

- 16.6% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 10.2% ($17,063 median earnings)
- High school graduate: 39.1% ($32,078)
- Some college or Associate's degree: 34.1% ($33,235)
- Bachelor's degree: 11.8% ($38,162)
- Graduate or professional degree: 4.8% ($56,964)

- 16% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 10.9% ($18,214 median earnings)
- High school graduate: 42.8% ($27,301)
- Some college or Associate's degree: 30.3% ($31,795)
- Bachelor's degree: 11.2% ($52,083)
- Graduate or professional degree: 4.8% ($54,821)

- 16% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 17.8% ($20,603 median earnings)
- High school graduate: 31.6% ($32,000)
- Some college or Associate's degree: 34.7% ($36,462)
- Bachelor's degree: 11.4% ($50,650)
- Graduate or professional degree: 4.5% ($56,035)

- 15.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 10.5% ($21,341 median earnings)
- High school graduate: 39.8% ($29,031)
- Some college or Associate's degree: 33.8% ($36,576)
- Bachelor's degree: 10.5% ($47,500)
- Graduate or professional degree: 5.3% ($57,440)

- 15.8% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 6.5% ($11,750 median earnings)
- High school graduate: 47.7% ($36,078)
- Some college or Associate's degree: 29.9% ($42,245)
- Bachelor's degree: 10.7% ($44,286)
- Graduate or professional degree: 5.1% ($65,833)

- 15.5% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 10% ($30,580 median earnings)
- High school graduate: 37.4% ($31,414)
- Some college or Associate's degree: 37.1% ($32,144)
- Bachelor's degree: 10.4% ($48,179)
- Graduate or professional degree: 5.1% ($59,034)

- 15.4% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 9.4% ($17,634 median earnings)
- High school graduate: 40.1% ($31,880)
- Some college or Associate's degree: 35.1% ($37,951)
- Bachelor's degree: 10.9% ($47,125)
- Graduate or professional degree: 4.5% ($67,241)

- 15.4% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 12% ($28,343 median earnings)
- High school graduate: 34.9% ($35,283)
- Some college or Associate's degree: 37.7% ($34,545)
- Bachelor's degree: 11.4% ($42,278)
- Graduate or professional degree: 4% ($46,731)

- 15.2% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 11.1% ($16,952 median earnings)
- High school graduate: 35.2% ($30,095)
- Some college or Associate's degree: 38.7% ($32,169)
- Bachelor's degree: 9.8% ($45,408)
- Graduate or professional degree: 5.4% ($51,875)

- 15.1% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 16% ($30,833 median earnings)
- High school graduate: 43.1% ($32,188)
- Some college or Associate's degree: 25.9% ($35,901)
- Bachelor's degree: 10.8% ($38,354)
- Graduate or professional degree: 4.3% ($50,139)

- 15% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 12% ($22,138 median earnings)
- High school graduate: 38.6% ($31,396)
- Some college or Associate's degree: 34.4% ($35,799)
- Bachelor's degree: 10.1% ($43,534)
- Graduate or professional degree: 4.8% ($76,518)

- 14.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 15.1% ($19,950 median earnings)
- High school graduate: 34.7% ($34,024)
- Some college or Associate's degree: 35.3% ($31,359)
- Bachelor's degree: 9.6% ($46,696)
- Graduate or professional degree: 5.3% ($53,854)

- 14.8% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 10.1% ($22,976 median earnings)
- High school graduate: 44.7% ($32,377)
- Some college or Associate's degree: 30.5% ($35,408)
- Bachelor's degree: 10% ($45,568)
- Graduate or professional degree: 4.8% ($66,037)

- 14.7% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 11.5% ($25,768 median earnings)
- High school graduate: 41.2% ($31,647)
- Some college or Associate's degree: 32.5% ($33,750)
- Bachelor's degree: 9.9% ($49,569)
- Graduate or professional degree: 4.9% ($52,889)

- 14.2% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 8.5%
- High school graduate: 43.4% ($42,125)
- Some college or Associate's degree: 33.9% ($41,429)
- Bachelor's degree: 8.1% ($55,625)
- Graduate or professional degree: 6.2% ($53,235)

- 14.1% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 17% ($23,617 median earnings)
- High school graduate: 37.5% ($34,746)
- Some college or Associate's degree: 31.4% ($38,141)
- Bachelor's degree: 10.3% ($49,113)
- Graduate or professional degree: 3.8% ($50,375)

- 13.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 8% ($20,250 median earnings)
- High school graduate: 34.5% ($31,301)
- Some college or Associate's degree: 43.5% ($36,054)
- Bachelor's degree: 10.2% ($46,667)
- Graduate or professional degree: 3.7% ($46,806)

- 13.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 13.2% ($16,789 median earnings)
- High school graduate: 33.6% ($31,198)
- Some college or Associate's degree: 39.2% ($35,669)
- Bachelor's degree: 10.1% ($43,878)
- Graduate or professional degree: 3.8% ($48,661)

- 13.3% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 15.6% ($24,038 median earnings)
- High school graduate: 37.3% ($31,292)
- Some college or Associate's degree: 33.7% ($33,910)
- Bachelor's degree: 8.4% ($50,544)
- Graduate or professional degree: 4.9% ($51,378)

- 13.1% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 14%
- High school graduate: 36%
- Some college or Associate's degree: 36.9% ($26,136)
- Bachelor's degree: 7.7% ($29,000)
- Graduate or professional degree: 5.3% ($45,096)

- 12.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 13.5% ($15,536 median earnings)
- High school graduate: 40.7% ($27,125)
- Some college or Associate's degree: 32.9% ($27,424)
- Bachelor's degree: 9.9% ($45,313)
- Graduate or professional degree: 3% ($50,250)

- 12.8% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 9.4% ($13,750 median earnings)
- High school graduate: 47.6% ($30,371)
- Some college or Associate's degree: 30.2% ($33,183)
- Bachelor's degree: 9.5% ($44,435)
- Graduate or professional degree: 3.3% ($44,679)

- 12.5% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 11.3% ($21,453 median earnings)
- High school graduate: 36.3% ($25,521)
- Some college or Associate's degree: 40% ($30,795)
- Bachelor's degree: 7.6% ($36,250)
- Graduate or professional degree: 5%

- 12.5% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 16.7% ($31,250 median earnings)
- High school graduate: 36.6% ($32,384)
- Some college or Associate's degree: 34.2% ($36,326)
- Bachelor's degree: 9% ($46,821)
- Graduate or professional degree: 3.5% ($62,024)

- 11.3% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 16.2% ($13,479 median earnings)
- High school graduate: 40.2% ($29,550)
- Some college or Associate's degree: 32.4% ($32,358)
- Bachelor's degree: 8% ($50,368)
- Graduate or professional degree: 3.3% ($55,172)

- 10.9% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 13.1% ($27,500 median earnings)
- High school graduate: 39.8% ($31,387)
- Some college or Associate's degree: 36.3% ($32,800)
- Bachelor's degree: 7.7% ($52,708)
- Graduate or professional degree: 3.2% ($70,000)

- 10.8% of population 25 years and over with Bachelor's degree or higher

- Less than high school diploma: 20.4% ($31,406 median earnings)
- High school graduate: 32.3% ($35,865)
- Some college or Associate's degree: 36.6% ($40,245)
- Bachelor's degree: 8.6%
- Graduate or professional degree: 2.1% ($98,333)