The fun, and one might say "accurate" part of Medieval America is that it's not about transplanting one on one situations--Ohio being France,
New England is one of the regions of the continent most long settled by Europeans and waves of immigrants over time; The Puritans, the Irish and Italians, even the recent migration of people from Brazil and Asia have seen it heavily reinvented, making it a region with one foot in the past and one in the future. With the exception New Orleans, it's also the region that has the most "haunted" reputation. The Salem Witch trials, Fall River and Lizzie Borden, Maine being the setting of many Stephen King novels, the and while Sleepy Hollow is in New York, there is the sense of being a no man's land wandering just a little too far from the Eastern Seaboard. Rhode Island (my home state) for being so small, also has image of spookiness, being the birthplace of H.P. Lovecraft, the home of the Annabelle Doll, and what many might forget, was the site of the first vampire panic on these shores.
An outbreak of Tuberculosis ran throughout New England at the beginning of the 19th century, and this was attributed to vampire attacks, which led to the exhumation, and ritual exorcism, of Mercy Brown's corpse. This was before many vampire novels were even published, and our idea of them being associated with Transylvania in particular To a lesser extent England, and in the U.S., a lot of vampire fiction is set in New York City (partly because it's narratively a great place to hide in plain sight, and party because of the trend of making vampires scenesters), and New Orleans, but in New England was perhaps the first existential fear of the undead.
In some ways, New Englanders being especially afraid of vampires would seem odd in Medieval America. This is, after all, the heartland of the American Non-Denominational Church, and probably has a higher than average clergy per capita. And it its reasonably close the sea, not quite the backwoods per se. But in the original novel Dracula, the count did set his resting place in Carfax Abbey, a former monastery. After a near millennia, already in the oldest settled region, there's probably quite a few ruins, many of them well being former religious sites, making them almost glorified cemeteries. And perhaps something of a circular logic pops up, even propagated by the Church itself--there are so many churches in New England, because England needs so many churches.
In some ways, New England resembles places like Medieval Romania or Buglaria, where it is near the nucleus of a once great empire, but after Boston, what we understand as Western Civilization takes a steep drop. There are no major cities north of Boston, and a hundred miles north we start getting into the mountains, the and the colds of Canada. Perhaps medieval New England is unsettle knowing they are so close to precipe unsettles and worries them. Perhaps they feel every day they're looking directly at the shadow, and the shadow looks back at them.
