In 1963, Sanders and Deborah Shiling Messing, whom he met in college, volunteered for several months on the Israeli kibbutz Sha'ar HaAmakim. They married in 1964 and bought a summer home in Vermont; they had no children and divorced in 1966. His son (and only biological child), Levi Sanders, was born in 1969 to then-girlfriend Susan Campbell Mott.
On May 28, 1988, Sanders married Jane O'Meara Driscoll (née Mary Jane O'Meara), who later became president of Burlington College, in Burlington, Vermont. The day after their wedding, the couple visited the Soviet Union as part of an official delegation in his capacity as mayor. They own a row house in Capitol Hill, a house in Burlington's New North End neighborhood, and a lakefront summer home in North Hero. He considers Jane's three children—Dave Driscoll (born 1975), Carina Driscoll (born 1974), and Heather Titus (née Driscoll; 1971)—to be his own. He also has seven grandchildren, three (including one who was adopted) through his son Levi and four through his stepchildren.
Sanders's elder brother, Larry, lives in England; he was a