sentences:  About 13.50% of families and 17.60% of the population were below the poverty line, including 21.50% of those under age 18 and 21.50% of those age 65 or over.Sampson County is also one of the largest producers of hogs in the nation, and second in the state, with a population of over 2 million hogs.Historically, Sampson County has been an agricultural county with a slow rise in population since the creation of the county.