A five member board of supervisors leads each Indiana SWCD.  The land occupiers of the county elect three of the SWCD Supervisors during the SWCD's annual meeting.  Each elected Supervisor holds a three year term.  The SWCD appoints the other two supervisors, through a recommendation to the State Soil Conservation Board.  Each SWCD Supervisor subscribes to a standard oath of office.

The Martin County SWCD was formed on April 3, 1945.

2006 Board of Supervisors:
Gene Sherfick, Chairman
Joe Williams, Vice Chairman
Tom Harker, Member
David Gregory, Member
Jim Williams, Member
Fred Woods, Associate Member
Dan Gregory, Associate Member
Phil Baker, Associate Member