Ranking of Montana Counties By Population Aged 25 years and above with an Educational attainment of Bachelors or Higher in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the population of Montana (aged 25 years and above) who had an educational attainment of Bachelors or Higher was 251,226. Among all Montana counties, Gallatin County had the highest population (aged 25 years and above) with an educational attainment of Bachelors or Higher (39,236), followed by Yellowstone County (37,713), and Missoula County (35,295).
The chart below shows the top 10 Montana counties, and the table below shows the ranking of all Montana 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: Montana ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Montana Counties By Population (Aged 25yrs+) with an Educational Attainment of Bachelors or Higher in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Gallatin County | 39236 |
| 2 | Yellowstone County | 37713 |
| 3 | Missoula County | 35295 |
| 4 | Flathead County | 24821 |
| 5 | Lewis and Clark County | 20943 |
| 6 | Cascade County | 15973 |
| 7 | Ravalli County | 9305 |
| 8 | Lake County | 6975 |
| 9 | Silver Bow County | 6738 |
| 10 | Park County | 4405 |
| 11 | Jefferson County | 3137 |
| 12 | Lincoln County | 2900 |
| 13 | Hill County | 2635 |
| 14 | Carbon County | 2535 |
| 15 | Custer County | 2393 |
| 16 | Fergus County | 2250 |
| 17 | Madison County | 2152 |
| 18 | Beaverhead County | 2110 |
| 19 | Glacier County | 1831 |
| 20 | Stillwater County | 1799 |
| 21 | Sanders County | 1796 |
| 22 | Deer Lodge County | 1661 |
| 23 | Dawson County | 1516 |
| 24 | Big Horn County | 1447 |
| 25 | Richland County | 1225 |
| 26 | Roosevelt County | 1210 |
| 27 | Chouteau County | 1120 |
| 28 | Broadwater County | 1115 |
| 29 | Teton County | 1051 |
| 30 | Blaine County | 1044 |
| 31 | Rosebud County | 1020 |
| 32 | Powell County | 1018 |
| 33 | Valley County | 1013 |
| 34 | Toole County | 933 |
| 35 | Pondera County | 931 |
| 36 | Mineral County | 857 |
| 37 | Granite County | 815 |
| 38 | Musselshell County | 758 |
| 39 | Sheridan County | 653 |
| 40 | Phillips County | 574 |
| 41 | Sweet Grass County | 572 |
| 42 | Meagher County | 422 |
| 43 | Fallon County | 400 |
| 44 | Judith Basin County | 330 |
| 45 | Powder River County | 325 |
| 46 | Liberty County | 320 |
| 47 | Daniels County | 290 |
| 48 | Wheatland County | 277 |
| 49 | McCone County | 245 |
| 50 | Prairie County | 234 |
| 51 | Carter County | 214 |
| 52 | Wibaux County | 174 |
| 53 | Treasure County | 161 |
| 54 | Garfield County | 144 |
| 55 | Golden Valley County | 121 |
| 56 | Petroleum County | 94 |