The children of parents with problem gambling are more likely to develop problem gambling themselves. Thus, problem gambling appears to be transmitted within families. This study surveyed adults seeking treatment for problem gambling and asked about their family environment during childhood. About 25% of participants grew up with at least one family member (a parent or sibling) with a gambling problem. Often, parental gambling problems started before the participants were 12 years old. Participants who grew up in a family with problem gambling reported more family financial issues, parental separation or divorce, and less authoritative parenting from their father. About one-third of participants felt their family’s gambling did not impact their own gambling. Two-thirds felt it did influence them, either through genetics or social learning.