| Staff | Title | Departments | Phone | Email |
|---|
| Martinez, Blanche | | District Clerk | (361) 888-0573 | Email |
| MetroCom | | Sheriff | (361) 826-2900 | |
| Main Line - Elections | | County Clerk | (361) 888-0580 | |
| Morrison, Sue | A/P Accounting Assistant | County Auditor | (361) 888-0614 | |
| Mumphord, Valerie | Administrative Secretary | Constable Precinct 1 | | |
| Martinez, Rick | Bailiff | 148th District Court | (361) 888-0739 | |
| Mihoin, Adrea | Benefits Coordinator | Human Resources | (361) 888-0464 | Email |
| McLemore, Theresa C. | Budget Assistant | County Judge | (361) 888-0853 | Email |
| Martinez, Velma | Chief Deputy | Tax Assessor/Collector | (361) 888-0204 | |
| Morales, Yvon | Cite and Release Coordinator | District Attorney | (361) 888-0271 | Email |
| McCahan, Jason | Constable | Constable Precinct 2 | (361) 937-6306 | |
| Mendoza, Oscar | Constable | Constable Precinct 5 | (361) 767-5204 | |
| Moreno, Ernest | Corporal | Constable Precinct 1 | | |
| Marez, John | County Commissioner Precinct 3 | Commissioner Precinct 3 | | Email |
| Molina, Melinda | Court Clerk | 319th District Court | (361) 888-0642 | |
| Morales, Connie | Court Manager | JP 2-2 | (361) 937-2614 | |
| Morales, Patricia C. | Court Reporter | County Court at Law 1 | (361) 888-0252 | Email |
| Martinez, Marisa | Court Reporter | County Court at Law 3 | (361) 888-0625 | Email |
| Munoz, Armando | Deputy | Constable Precinct 1 | | |
| Muniz, Mandy | Deputy | Constable Precinct 1 | | |