| Randolph - Educational Attainment | FIPS Code=17045 |
| 1970 | 1980 | 1990 | |
| Per Cent of Individuals Ages 25 and Older without a High School Diploma | 41.68 | 25.90 | 17.20 |
| Per Cent of Individuals Ages 25 and Older with a High School Diploma or Equivalent | 30.66 | 36.60 | 38.10 |
| Per Cent of Individuals Ages 25 and Older with a Bachelor's Degree or Some College | 17.79 | 19.20 | 23.50 |
| Per Cent of Individuals Ages 25 and Older with a Doctorate, Professional or Master's Degree | 9.86 | 18.30 | 21.30 |