Latitude / Longitude:
1,519 ft (463 m)
Central (CST) (UTC-6)
Rosalia is an unincorporated community and CDP in Butler County, Kansas, United States.
Rosalia was platted in 1883. The town was named by its first postmaster for his wife.
As of the 2010 census it had a population of 171.
In June 2014, Symphony In The Flint Hills was held a few miles northeast of Rosalia with over 7000 in attendance.