Texas Government Code - GOV'T § 34.001. Candidate Subject to Code

(1) chief justice or justice of the supreme court;

(2) presiding judge or judge of the court of criminal appeals;

(3) chief justice or justice of a court of appeals;

(4) district judge, including a criminal district judge;

(5) judge of a statutory county court;

(6) county judge who performs judicial functions;

(7) justice of the peace;  and

(8) municipal court judge.