His first real "hometown" was probably Honolulu, Hawaii where he was born and where he spent his adolescent and teen years. Before that they lived for a short period in Indonesia when his mom remarried a man from there after his biological father left them to return to Kenya. His second adult "hometown" was Chicago, IL where he owns a house and started his family and married life with Michelle Obama.
When Barack Obama was two years old, his parents divorced. Ann Dunham Obama then married another East-West Center student from Indonesia. The family moved to Jakarta in 1967, where Obama's half-sister Maya was born. They returned to Honolulu in 1971 where he stayed through his high school graduation from Punahou School -- a private prep school.
After college and then law school, Obama returned to Chicago to practice as a civil rights lawyer. He also taught Constitutional Law at the University of Chicago Law School. On October 3, 1992, he and Michelle were married and moved to Kenwood, on Chicago's South Side. He was elected to the US Senate representing Illinois.
Currently, he calls Washington, DC his home town and lives in the White House.
Barack Obama is responsible for the people of the USA
Barack Obama Sr.
Barack Obamas political office was in the white house