I live 3 miles west of 81 in a rural area, surrounded by farms and orchards. When we moved here from Suburban Md. in 2006 there weren’t many amenities nearby. In the past several years though, a great deal of development has taken place a few miles to our south in an area called Spring Mills (off I-81 Exit 20.) I would definitely check it out.
Three new schools were built there, including Spring Mills HS, which is a great school. I would rank it at the top for schools in Berkeley County. Our daughter graduates from there this Spring. A great many new single-family homes and townhouses are being built there also, along with two medical facilities that recently opened, and with so much retail now nearby it has really blossomed into a nice community.
If you have questions during your search, please feel free to reach out to me via PM. (My name is Craig.)
Good luck !