| Staff | Title | Departments | Phone | Email |
|---|
| Motor Vehicle | Main Line | Tax Assessor/Collector | (361) 888-0459 | |
| Martinez, Velma | Chief Deputy | Tax Assessor/Collector | (361) 888-0204 | |
| McClure, C. | Deputy | Sheriff | (361) 887-2248 | |
| MetroCom | | Sheriff | (361) 826-2900 | |
| Moreno, Yolanda | Senior Accounting Assistant | Public Works | (361) 888-0490 | Email |
| Moreno, Lesley | Legal Secretary | Public Defender | | Email |
| Morales, Connie | Court Manager | JP 2-2 | (361) 937-2614 | |
| Mihoin, Adrea | Benefits Coordinator | Human Resources | (361) 888-0464 | Email |
| Mihoin, Linda | Benefit Accountant | Human Resources | (361) 888-0208 | Email |
| Martinez, Blanche | | District Clerk | (361) 888-0573 | Email |
| Morales, Yvon | Cite and Release Coordinator | District Attorney | (361) 888-0271 | Email |
| McLemore, Theresa C. | Budget Assistant | County Judge | (361) 888-0853 | Email |
| McCoy, Timothy J. | Judge | County Court at Law 5 | | |
| Martinez, Marisa | Court Reporter | County Court at Law 3 | (361) 888-0625 | Email |
| Morales, Patricia C. | Court Reporter | County Court at Law 1 | (361) 888-0252 | Email |
| Munguia, Diana | Elections Manager | County Clerk | (361) 888-0580 | |
| Main Line - Elections | | County Clerk | (361) 888-0580 | |
| Morrison, Sue | A/P Accounting Assistant | County Auditor | (361) 888-0614 | |
| Mendoza, Oscar | Constable | Constable Precinct 5 | (361) 767-5204 | |
| McClure, Christina | Lieutenant | Constable Precinct 2 | | |