Mary Calvillo is proud to call Platte County home, where she has lived for the past 28 years, with her husband, Roberto. Her deep connection to the community, combined with more than four decades of professional experience, has prepared her to serve Platte County residents as County Clerk with accuracy, integrity, and care.
Mary earned her undergraduate degree from Missouri State University, formerly Southwest Missouri State University, majoring in Personnel Management, also known as Human Resources, and International Marketing. Her education gave her a strong foundation in human resources, organizational leadership, and business principles.
Over the course of her career, Mary has built hands-on experience in:
Office management
Executive assistance
Administrative operations
Customer service
Precise record-keeping
Efficient process development
Clear and professional communication
Strong organizational leadership
Attention to detail
These skills directly align with the responsibilities of the Platte County Clerk’s office. Mary understands the importance of managing county records accurately, supporting county operations smoothly and transparently, and putting residents’ needs first.
Mary is committed to fiercely safeguarding taxpayer interests in Platte County while serving with professionalism, accountability, and integrity.
Mary Calvillo looks forward to earning the trust and vote of Platte County voters to serve in this important role.
Meet Mary Calvillo

