It's then revealed in a later episode (The Accomplice) that she had got emancipated from her parents; having done this, she dropped out of high school, got a job at The Bait Shop and moved into an apartment on the numeric streets of Newport Beach.
This revelation in "The Accomplice" indicates that she was emancipated from her parents, leading to her leaving high school, finding work at The Bait Shop, and moving to a residence on the numerical streets of Newport Beach.