From Ancestry.com Wiki
Orwell is a town in Addison county, Vermont. It was formed in 1763 in N.H. from Rutland county. The probate and court district for Orwell is Addison. For more information, contact the town at 436 Main St., P.O. Box 32, Orwell 05760. On the attached map, Orwell is shown as 22 in Addison county.
For information about the state of Vermont see Vermont Family History Research.