Known by the people of Chester and Montgomery counties simply as “Andy,” Senator Andrew E. Dinniman has been recognized as an advocate for communities and families through three decades in public service.

That vision and leadership led to his 2006 election and 2008 reelection to the Pennsylvania Senate, representing Pennsylvania’s 19th District. 

Prior to serving in the legislature, Senator Dinniman served for 15 years as a Chester County Commissioner, making him the longest-serving commissioner in county history. As Commissioner, Andy demonstrated a true commitment to the future of Chester County by taking on some of the region’s most difficult issues. He worked to found the Safe Harbor Homeless Shelter, the Chester County Gleaning Project and served as one of the principal architects of Landscapes, the county’s award-winning open space plan. Both as a commissioner and a state senator, Andy also has consistently opposed tax hikes and increases in spending.

Before being elected county commissioner in 1991, Senator Dinniman served on the Downingtown Area School Board and the West Whiteland Municipal Authority.  A teacher and community leader, he has been honored by numerous environmental, education, veterans’ and service groups: the NAACP, the Military Order of the Purple Heart, the Exton Regional Chamber of Commerce, Safe Harbor of Greater West Chester, the Human Relations Council of Greater West Chester and Pennsylvania Citizens for Better Libraries.

In the Senate, his priorities include economic security and job growth, local government control over local issues, open space preservation, access to education, health care reform, historic preservation, energy independence and quality-of-life issues.

Senator Dinniman serves as minority chairman of the Education Committee and is a member of the Agriculture and Rural Affairs, Communications and Technology, Consumer Affairs and Professional Licensure, Environmental Resources and Energy, Local Government, State Government and Veterans Affairs and Emergency Preparedness committees.

Senator Dinniman is also a member of the Ben Franklin Technology Development Authority, the Pennsylvania Emergency Management Council, and the Joint Legislative Air and Water Pollution Control and Conservation Committee. He also serves on the Pennsylvania State Board of Education, the Pennsylvania Abraham Lincoln Bicentennial Commission and the Pennsylvania Wing of the Civil Air Patrol.

In addition, Senator Dinniman belongs to the Life Sciences and Biotechnology Caucus, the Community College Caucus, and the Joint House and Senate Autism Caucus.