1850 Counties of Vermont
| in area | Courts held at | Pop in 1850 | ||
| Addison Co, VT | western part on Lake Champlain, Otter river | 500 sq miles | Maddlebury | 26,549 |
| Bennington Co, VT | in south west part | 680 sq miles | Bennington & Manchester | 18,589 |
| Caledonia Co, VT | northeast part, west side of Connectent river | 700 | Denville | 23,060 |
| Chittenden Co, VT | western boundary, east side of Lake Champlain, crossed by Onion river | 500 | Burlington | 29,036 |