Today, Duncan has several businesses including a gas station, bar, two auto repair shops, beauty salon, three home daycare facilities, local garbage collections service, farmers’ cooperative, convenience store and an equipment repair and welding shop.

Duncan is also where all Dorothy Lynch salad dressings are manufactured.  In 1964, Tasty-Toppings, Inc. purchased the recipe and rights to Dorothy Lynch and built a production facility in Columbus, Nebraska.  The company later expanded its production capacity with a modern 64,000 square foot plant in Duncan.