 About 0.4% of families and 2.9% of the population were below the poverty line, including 2.2% of those under age 18 and 6.0% of those age 65 or over.Companies with headquarters in Rochelle Park include the specialty retailer United Retail Group, which is a publicly traded company on the New York Stock Exchange.and the US Headquarters for United Kingdom based Cashback website TopCashback.