About 3.5% of Vermont’s population moved out of the state in 2012-2013—about the same number as those moving in, according to Census estimates. This means that the number of people moving in and out of the state had no net effect on the state’s total population.
Having equal sized flows in and out of the state is not unique for Vermont. The earliest estimates available in this format (for 2004-2005) show that roughly the same number of people moved in and out of the state in that year.
Vermont’s experience mirrors that of several New England states. Both Rhode Island and New Hampshire had in- and out-migration rates in the 3-4% range.