Kid Lucas was born in France to a French mother and a Senegalese father. He eventually moved to Austin, Texas when he was 8 years old.  Two years later, he moved to Detroit, where he spent the majority of high adolescence. 
When he graduated from high school, he and his parents moved to San Francisco. Two months later, he decided he wanted to work on music full-time. He started traveling with people across different states and wound up in Las Vegas . 
Growing up, he used to visit France every summer. However, once he started focusing on his music, his time there has been limited. 
With regards to academics, he admits to not doing well in school as early as the fourth grade; he considered it his "main struggle."  He went to an international school when he was living in Austin, where he learned English, Spanish, and French. When he was in Detroit, he did not do well in school, as he feels like he could not adapt to a school's learning environment; he recalls getting suspended numerous times, but not due to fighting. 
Lucas first started rapping when he was 11 years old. In an interview, he mentioned the first bars he ever wrote: 
The name is Luke, my fist is made of metal
If you wanna meet me, you can look at my schedule
Lucas posted his first Vine video on July 9, 2013 and only posted two more videos the rest of the year. He started to upload videos consistently in April 2014.
He speaks French fluently with both of his parents.  His father used to rap when he was younger.  He has a little brother, with whom he speaks English.  His family on his mother's side still lives in Dieppe, which is about two hours away from Paris . 
In 2017, Lucas Coly was arrested for disruptive conduct and was banned from Lenox Square in Atlanta for two years. According to Lucas, he was hosting an event at Lenox Mall, and because the crowd got to big, the police detained him in a room for one hour and let him go.