Where one of the two major parties is not listed below, no candidate filed for that party's primary, according to the Texas secretary of state's office.
*indicates incumbent
Texas state representative, District 33
- Democrat: Andy Rose
- Republican: Justin Holland*
Texas state representative, District 66
- Democrats: Sharon Hirsch, Aimee Garza Lopez
- Republican: Matt Shaheen*
Texas state representative, District 67
- Democrats: Tom Adair, Rocio Gosewehr Hernandez, Anthony Lo, Jenna Royal, Lorenzo Sanchez
- Republican: Jeff Leach*
Texas state representative, District 70
- Democrat: Angie Bado
- Republican: Scott Sanford*
Texas state representative, District 89
- Democrat: Sugar Ray Ash, Jon Cocks
- Republican: Candace Noble*
Collin County tax assessor-collector
- Democrat: John Turner-McClelland
- Republicans: Scott Grigg, Kenneth L. Maun*
Collin County sheriff
- Republican: James Skinner*
Collin County commissioner, Precinct 1
- Democrats: Courtney Brooks, Carol Scarborough
- Republican: Susan Fletcher*
Collin County commissioner, Precinct 3
- Democrat: Dianne C. Mayo
- Republican: Darrell Hale*, Steve Terrell
Collin County constable, Precinct 1
- Republicans: Mike Vance, Shane Williams*
Collin County constable, Precinct 2
- Republican: Gary Edwards*
Collin County constable, Precinct 3
- Republican: Sammy Knapp*
Collin County constable, Precinct 4
- Republican: Joe Wright*
Collin County justice of the peace, Precinct 3, Place 1
- Democrat: Ramona Brumfield
Correction: A previous version of this story used incomplete filing records. The story has been updated to include the following candidates: Democrat Lorenzo Sanchez for state House District 67; Democrat Jon Cocks for state House District 89; Democrats Courtney Brooks and Carol Scarborough for Collin County commissioner, Precinct 1; Democrat Dianne C. Mayo and Republican Steve Terrell for Collin County commissioner, Precinct 3; and Democrat Ramona Brumfield for Collin County justice of the peace, Precinct 3, Place 1.