Diane Duff

Director of Corporate Relations

Diane Duff joined NACo in 2018 as the Director of Corporate Relations. In this position, she leads the effort to secure, build and sustain relationships between corporate leaders and county government decision-makers. Diane comes to NACo with extensive experience building partnerships between elected officials and corporate leaders to advance program and policy objectives. She served as the Executive Director of the Southern Governors’ Association for more than a decade, and most recently was Executive Director of the National Association of Workforce Development Professionals. Diane grew up in Howard County, Md., and earned her bachelor’s degree from the University of Maryland, College Park. Diane and her husband, Jim McCleskey, live in Washington, D.C., where they are raising their son, Aiden.

Program Corporate Engagement

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Stronger Counties. Stronger America.

About NACo

The National Association of Counties (NACo) strengthens America’s counties, including nearly 40,000 county elected officials and 3.6 million county employees. Founded in 1935, NACo unites county officials to:

  • Advocate for county government priorities in federal policymaking
  • Promote exemplary county policies and practices
  • Nurture leadership skills and expand knowledge networks
  • Optimize county and taxpayer resources and cost savings, and
  • Enrich the public’s understanding of county government.


Strengthen America’s counties.


Healthy, safe and vibrant counties across America.