(a) The following are designated as truancy courts:
(1) in a county with a population of 2.1 million or more, the constitutional county court;
(2) justice courts; and
(3) municipal courts.
(b) A truancy court has exclusive original jurisdiction over cases involving allegations of truant conduct.
(c) A municipality may enter into an agreement with a contiguous municipality or a municipality with boundaries that are within one-half mile of the municipality seeking to enter into the agreement to establish concurrent jurisdiction of the municipal courts in the municipalities and provide original jurisdiction to a municipal court in which a truancy case is brought as if the municipal court were located in the municipality in which the case arose.
(d) A truancy court retains jurisdiction over a person, without regard to the age of the person, who was referred to the court under Section 65.051 for engaging in truant conduct before the person's 19th birthday, until final disposition of the case.