Surakarta, known colloquially as Solo, is a city in Central Java, Indonesia. The 44 km² city adjoins Karanganyar Regency and Boyolali Regency to the north, Karanganyar Regency and Sukoharjo Regency to the east and west, and Sukoharjo Regency to the south. On the eastern side of Solo lies Solo River. Its built-up area, consisting of Surakarta Municipality and 59 districts spread over seven regencies, was home to 3,649,254 inhabitants as of 2010 census.
Surakarta is the birthplace of the current President of Indonesia, Joko Widodo. He served as Mayor of Surakarta from 2005 to 2012.