According to the Tennessean, the settlement was for $650,000.
The victim's family said Cummins "groomed" her for months.
They filed a lawsuit on her behalf against the Maury County School District.
The lawsuit alleged teachers and administrators knew about a relationship before Cummins was fired and before their disappearance.
Tad Cummins pleaded guilty in April 2018 to federal charges of transporting a minor across state lines for the purpose of engaging in criminal sexual conduct.