 
          
			    Population: 9,636
			    County Seat: San Diego 78384
			    Square Mileage: 1,793			  
Street: 
  400 E. Gravis St.
  PO Box 189
  San Diego, TX 78384
 (361) 279-6200
 (361) 279-6243
 www.co.duval.tx.us 
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| Office | Office Holder | (361) Phone / Fax | 
|---|---|---|
| County Judge | The Honorable Arnoldo Cantu | (361) 279-6204 / | 
| District Attorney District 229 | G. Allen Ramirez | (361) 279-6220 | 
| County Attorney | Baldemar F. Gutierrez | (361) 279-6232 / | 
| District Clerk | Rachel Saenz Vela | (361) 279-6239 | 
| County Clerk | Araceli "Sally" Lichtenberger | (361) 279-6272 / | 
| County Treasurer | Sylvia Lazo | (361) 279-6330 / | 
| Tax Assessor-Collector | Roberto Elizondo | (361) 279-6338 / | 
| Sheriff | Romeo R. Ramirez | (361) 279-6209 / | 
| County Auditor | Monica Longoria | (361) 279-6320 / | 
| Chief Appraiser | Raul Garcia | (361) 279-3305 / | 
| Elections Administrator | Bobby Gonzalez | (361) 279-6278 / | 
| County Commissioner: Precinct 1 | Pete A. Guerra | (361) 279-6215 / | 
| Precinct 2 | Adalberto "Chaico" Vera | (361) 279-7456 / | 
| Precinct 3 | Marla Garza | (361) 256-3911 / | 
| Precinct 4 | Marty Perez | (361) 394-7487 / | 
| Justice of the Peace: Precinct 1 | Geraldita "Tita" Martinez | (361) 279-6218 | 
| Precinct 2 | Anabel Chapa-Canales | (361) 279-6245 / | 
| Precinct 3 | Aida Estraca | (361) 256-3982 / | 
| Precinct 4 | Linda Garza-Moncada | (361) 394-6011 / | 
| Constable: Precinct 1 | Bruno Valdez | (361) 279-6252 / | 
| Precinct 2 | Tammy Hallmark | (361) 279-6245 / | 
| Precinct 3 | Raul Oliveira, III | (361) 227-0519 / | 
| Precinct 4 | Arturo Martinez | (361) 394-5322 / |