Arlington is a city in Sibley County, Minnesota, United States. The population was 2,233 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 1.5 square miles (3.8 km²), all of it land. Minnesota State Highway 5 serves as a main route in the community.
As of the census of 2000, there were 2,048 people, 828 households, and 523 families residing in the city. The population density was 1,395.1 people per square mile (537.9/km²). There were 859 housing units at an average density of 585.2 per square mile (225.6/km²). The racial makeup of the city was 95.02% White, 0.24% African American, 0.39% Asian, 3.91% from other races, and 0.44% from two or more races. Hispanic or Latino of any race were 6.05% of the population.