Arcadia is a city in Trempealeau County, Wisconsin, along the Trempealeau River. The population was 2,925 at the 2010 census. It is the largest city in Trempealeau county.
Arcadia was founded in 1855 on a hill overlooking the Trempealeau River Valley. However, when the Green Bay and Western Railroad built a line in the river valley, the city developed along the line.
Arcadia is located at 44°15′7″N 91°29′41″W / 44.25194°N 91.49472°W / 44.25194; -91.49472 (44.251979, -91.494997).