The boy had apparently been jumping on the couch near an open front window when he apparently fell, taking with him a metal and glass candleholder, family members said.
He was taken to Mount Sinai Hospital in serious-to-critical condition, but was later said to be in good condition, according to family members and the Chicago Fire Department.
The boy’s aunt, Lisseth Sosa, 36, said that doctors put a neck brace on the child and bandaged his fingertips.
The boy fell from the window in the 1800 block of South Harding Avenue about 12:30 p.m., the Chicago Fire Department said.
Sosa, who lives in the first-floor apartment, called the boy an active child who is often jumping about the house.
Neighbors gathered outside the three-story building this afternoon and said they often see the boy jumping near that window.
Tribune reporters Abel Uribe and Liam Ford contributed.