| Underhill - Educational Attainment | FIPS Code=07075 |
| 1970 | 1980 | 1990 | |
| Per Cent of Individuals Ages 25 and Older without a High School Diploma | 30.39 | 13.10 | 6.10 |
| Per Cent of Individuals Ages 25 and Older with a High School Diploma or Equivalent | 39.22 | 31.50 | 17.80 |
| Per Cent of Individuals Ages 25 and Older with a Bachelor's Degree or Some College | 14.38 | 20.00 | 26.70 |
| Per Cent of Individuals Ages 25 and Older with a Doctorate, Professional or Master's Degree | 16.01 | 35.40 | 49.40 |