This article relates to data concerning the number of passengers using buses operating in Abashiri city, Hokkaido, Japan, from 2013 to 2018. Data on the number of passengers for three lines—the shopping line, the Tokyo NODAI line, and the Hagoromo-danchi line—were collected by counting the passengers getting on and off the buses at each stop. The survey was conducted for one week each in February, June, and September of each year of the study period. The data showing the number of customers getting on, getting off, or passing each bus stop are provided in Microsoft Excel Worksheets.