UNITED STATES -- People in Syracuse and Ithaca are apparently among the worst tippers in the country. According to a study by food ordering service GrubHub, users in Syracuse and Ithaca came in second and third for the lowest percentage of orders going to tips. The most frugal tippers are in Dayton, Ohio.

GrubHub also found the most generously tipping cities, with Charleston, South Carolina in first place. Average tips were 15 to 17 percent of each order.

GrubHub serves more than 400 cities across the country.