| Sandgate - Educational Attainment | FIPS Code=3050 |
| 1970 | 1980 | 1990 | |
| Per Cent of Individuals Ages 25 and Older without a High School Diploma | 28.33 | 23.8 | 9.5 |
| Per Cent of Individuals Ages 25 and Older with a High School Diploma or Equivalent | 48.33 | 36.5 | 31.3 |
| Per Cent of Individuals Ages 25 and Older with a Bachelor's Degree or Some College | 10 | 12.7 | 30.7 |
| Per Cent of Individuals Ages 25 and Older with a Doctorate, Professional or Master's Degree | 13.3 | 27.1 | 28.5 |