Seniority and President Pro Tempore List
| Member | Oath of Office Administered | President Pro Tempore Election |
|---|---|---|
| 01. Whitmire | 68th Regular (01/1983) | 73rd Interim (1993) |
| 02. Zaffirini | 70th Regular (02/1987) | 75th Regular (1997) |
| 03. Lucio | 72nd Regular (01/1991) | 78th Regular (2003) |
| 04. Nelson | 73rd Regular (01/1993) | 78th Interim (2003) |
| 05. West | 73rd Regular (01/1993) | 79th Regular (2006) |
| 06. Hinojosa | 78th Regular (01/2003) | 84th Regular (2015) |
| 07. Seliger | 78th Interim (03/2004) | 85th Regular (2017) |
| 08. Nichols | 80th Regular (01/2007) | 85th Interim (2017) |
| 09. Huffman | 80th Interim (12/2008) | 86th Interim (2019) |
| 10. Birdwell | 81st Interim (07/2010) | 87th Regular (2021) |
| 11. Campbell | 83rd Regular (01/2013) | 87th Interim (2021) |
| 12. Hancock | 83rd Regular (01/2013) | |
| 13. Taylor | 83rd Regular (01/2013) | |
| 14. Schwertner | 83rd Regular (01/2013) | |
| 15. Creighton | 83rd Interim (08/2014) | |
| 16. Perry | 83rd Interim (09/2014) | |
| 17. Kolkhorst | 83rd Interim (12/2014) | |
| 18. Hall | 84th Regular (01/2015) | |
| 19. Bettencourt | 84th Regular (01/2015) | |
| 20. Menéndez | 84th Regular (03/2015) | |
| 21. Miles | 85th Regular (01/2017) | |
| 22. Buckingham | 85th Regular (01/2017) | |
| 23. Hughes | 85th Regular (01/2017) | |
| 24. Alvarado | 85th Interim (12/2018) | |
| 25. Johnson | 86th Regular (01/2019) | |
| 26. Paxton | 86th Regular (01/2019) | |
| 27. Powell | 86th Regular (01/2019) | |
| 28. Eckhardt | 86th Interim (07/2020) | |
| 29. Springer | 86th Interim (01/2021) | |
| 30. Gutierrez | 87th Regular (01/2021) | |
| 31. Blanco | 87th Regular (01/2021) |
