| Derby - Educational Attainment | FIPS Code=19035 |
| 1970 | 1980 | 1990 | |
| Per Cent of Individuals Ages 25 and Older without a High School Diploma | 50.64 | 36.50 | 29.20 |
| Per Cent of Individuals Ages 25 and Older with a High School Diploma or Equivalent | 29.49 | 38.20 | 32.70 |
| Per Cent of Individuals Ages 25 and Older with a Bachelor's Degree or Some College | 12.71 | 14.10 | 21.70 |
| Per Cent of Individuals Ages 25 and Older with a Doctorate, Professional or Master's Degree | 7.16 | 11.20 | 16.40 |