 The per capita income for the county was $18,795.About 5.30% of families and 8.20% of the population were below the poverty line, including 9.10% of those under age 18 and 9.70% of those age 65 or over.Rockingham County is principally served by Norfolk Southern Railway, a (major) Class 1 railroad and additionally, by the Shenandoah Valley Railroad, a short-line railroad.