Laurie, I can answer your question since I reside in Northampton county. The public high schools are being consolidated into one campus effective September 2012. That would be Northampton East in Jackson, NC.
There are also private school options in Northampton County and in Roanoke Rapids. You may want to consider where your home would be and the travel distance to schools as you decide to locate. I am Realtor in Northampton county and a board member of the Lake Gaston Association.
Part of Lake Gaston is located in Northampton County. Please feel free to contact me for more information about the area and available homes.