They left Vermont and headed west (or east in some cases) for a variety of reasons, not the subject of our study here, but native Vermonters served in regiments from other states during the Civil War (and not all of them were Union soldiers). Select from the above menu for lists.
Based on the 1860 census, of the 413,852 native-born Vermonters in the United States, 174,765 (42.2%) lived outside Vermont. **
Given that statistic, one would assume a good number of native Vermonters served in other State's units, and indeed they did!
More than 8,800 in just seven states alone! More than 3,175 in New York, almost 1,521 in Illinois, more than 1,475 in New Hampshire, and 1,395 in Massachusetts. Several hundred each served in some of the mid-western states, including Iowa, Minnesota and Wisconsin. All the other existing states except South Carolina, plus a few territories also attracted Vermonters into their military ranks.
Select a state from the menu above.** (William S. Rossiter, "Vermont. An Historical and Statistical Study of the Progress of the State." Publications of the American Statistical Association, volume XII, Nos. 93, March, 1911. Boston: American Statistical Association, 1912)