Williamson County Disease Reporting Contacts


Reporting Resources

When to Report

  • Call Immediately: Please phone report 
  • Within 1 work day: Phone or Fax report 
  • Within 1 week: Fax or Mail report 

Contact Information

County: Williamson
Type of Public Health Entity: Public Health District 
Name of Public Health Entity: Williamson County and Cities
Public Health District 
Lead Epidemiology Contact Name: Zullymar Rios Velazquez
Lead Epidemiology Contact Email: zullymar.riosvelazquez@wilco.org
Lead Epidemiology Contact Phone Number: 512-248-3211
Epidemiology Coverage Area(s): Williamson County and Cities
Primary COVID Email: epi@wilco.org
Primary COVID Phone Number: 512-943-3660 
Epidemiology Main Phone Number: 512-943-3660 
Epidemiology 24/7 Reporting Line: 512-864-8345                   
Epidemiology Fax: 512-248-3267
Epidemiology Mailing Address: 355 Texas Ave, Round Rock, TX 78664
Epidemiology Website: Williamson County and Cities Health District
 Primary COVID Website:  Williamson County and Cities Health District

Get in Touch

Mailing Address

Mail Code: 1927 PO BOX 149347
1100 West 49th Street
Suite G401
Austin, TX 78714
United States