Ranking of Utah Counties By Percentage of Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the population of Utah (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 6.90%. Among all Utah counties, San Juan County had the highest percentage of its population (aged 25 years and above) with an educational attainment of Less than High School Diploma (13.45%), followed by Uintah County (12.42%), and Piute County (10.80%).
The chart below shows the top 10 Utah counties, and the table below shows the ranking of all Utah counties.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
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Related Topics: Utah ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Utah Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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| Rank | County | Percentage of Population (Aged 25yrs+) (%) |
|---|---|---|
| 1 | San Juan County | 13.45 |
| 2 | Uintah County | 12.42 |
| 3 | Piute County | 10.80 |
| 4 | Millard County | 10.27 |
| 5 | Duchesne County | 10.23 |
| 6 | Beaver County | 9.27 |
| 7 | Sanpete County | 9.01 |
| 8 | Carbon County | 8.52 |
| 9 | Wayne County | 8.31 |
| 10 | Salt Lake County | 8.20 |
| 11 | Weber County | 8.18 |
| 12 | Sevier County | 7.64 |
| 13 | Tooele County | 7.63 |
| 14 | Juab County | 7.48 |
| 15 | Kane County | 7.31 |
| 16 | Iron County | 6.67 |
| 17 | Washington County | 6.31 |
| 18 | Box Elder County | 6.28 |
| 19 | Grand County | 6.24 |
| 20 | Cache County | 5.84 |
| 21 | Emery County | 5.75 |
| 22 | Summit County | 4.96 |
| 23 | Utah County | 4.88 |
| 24 | Garfield County | 4.82 |
| 25 | Davis County | 4.32 |
| 26 | Daggett County | 4.25 |
| 27 | Wasatch County | 3.94 |
| 28 | Rich County | 3.16 |
| 29 | Morgan County | 2.16 |