Sam is active in civic affairs; he has served on many local and regional boards.

Sam is a selectman for the town of Holderness (since 2012) and served on the town's Budget Committee and Zoning Board of Adjustment from 2011 to 2012. 

Sam is also a board member for the Pemi-Baker Regional School District (since 2011), where he serves on the Policy and Budget Committee and has negotiated numerous support staff and teacher contracts. 

Sam served two terms as a board member for Speare Memorial Hospital from 2011 to 2017 and was board chairman from 2016 to 2017. In addition, he was a board member for the Grafton County Economic Development Council from 2006 to 2007.