| Brunswick - Population Characteristics | FIPS Code=09025 |
| 1970 | 1980 | 1990 | |
| Population Density (Persons per Square Mile) | 0.00 | 0.01 | 3.70 |
| Total Population | 45 | 82 | 92 |
| Per Cent of Popualtion Born within Vermont | 68.29 | 29.73 | 33.30 |
| Number of Families | 19 | 24 | 26 |
| Per Cent of Population Aged 18 or Younger | 14.63 | 25.61 | 36.96 |
| Per Cent of Population Aged 18 to 64 | 51.22 | 59.76 | 51.09 |
| Per Cent of Population Aged 65 or Older | 34.15 | 14.63 | 87.02 |