This was 2.3 percent higher than the state average of 46.3 percent. In 2020 the total municipality population reached 2,686.
87.3 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Arlington for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 226 | 12.7 |
| Regular high school diploma | 365 | 20.6 |
| GED or alternative credential | 125 | 7.1 |
| Some college, less than 1 year | 45 | 2.5 |
| Some college, 1 or more years, no degree | 151 | 8.5 |
| Associate's degree | 140 | 7.9 |
| Bachelor's degree | 420 | 23.7 |
| Master's degree | 194 | 10.9 |
| Professional school degree | 85 | 4.8 |
| Doctorate degree | 22 | 1.2 |
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