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Rep DeSaulnier in hearing

Short Biography

Congressman Mark DeSaulnier (DE-SOWN-YAY) proudly represents California’s 10th Congressional District, which includes Contra Costa County and a part of Alameda County. For more than 30 years in public service and as a small business owner, Mark has been a leader for working families. During his time in U.S. House, most of which Republicans were in charge, Mark passed more than 60 legislative efforts. He is an effective legislator who knows how to get things done.

In his eight years in the House, Congressman DeSaulnier has earned a reputation as one of its most engaged Representatives with CQ Roll Call saying: “A day with DeSaulnier illustrates the breakneck schedules of one of the House’s busiest members.”


Mark currently sits on the Committee on Transportation and Infrastructure and the Committee on Education and Labor, where he serves as Ranking Member of the Subcommittee on Health, Employment, Labor, and Pensions (HELP). He was also appointed to the House Committee on Ethics where he has the honor of working on a bipartisan basis to foster good government and promote accountability, transparency, and integrity throughout the House, work central to his overarching goal as a Member of Congress to increase trust in government among the American people.

Representing the East Bay which has both transportation challenges and potential, Mark has made reducing congestion, easing commutes, and improving quality of life a top priority since coming to Congress and has successfully passed legislation to increase investment in transportation research and planning, improve public transit, and make our nation’s aviation system safer. Mark is committed to supporting Contra Costa families and workers by helping to create jobs, lower everyday costs, and build an economy that works for all Americans.


Congressman DeSaulnier lives in Concord where he raised his two sons, Tristan and Tucker. He is an avid runner and has completed twenty-three marathons.

Office Locations

503 Cannon House Office Building
Washington, DC  20515
Phone: (202) 225-2095
Fax: (202) 225-5609
4703 Lone Tree Way
Antioch, CA  94531
Phone: (925) 754-0716
Fax: (925) 754-0728
3100 Oak Road
Suite 110
Walnut Creek, CA  94597
Phone: (925) 933-2660
Fax: (925) 933-2677