Many of the towns you mention are left overs from the mining era, in which time the population was nearly 10 times what it is now. Lots of towns popped up around mines, mine locations or processing areas. Once they mining left, the smaller areas got even smaller like Seneca, Bumbletown, Phillipsville and are now called "locations". Meaning they are not incorporated as a town or village, but still have enough homes/residents to be recognized as as a neighborhood.
Then there are some spots that are names only like Ojibway, Sawmill, Chickensville. Well, that last one actually has some folks living there but is technically part of Hubbell.
-John