We examine how undesirable juvenile behavior is related to the structure and quality of home life. In homes with both own-parents or one parent and another adult partner, we distinguish among unhappy, moderately happy, and very happy relationships for the adults. Single-parents are treated as one category. Living with both own-parents in a very or moderately happy relationship is associated with reduced likelihood of most undesirable behaviors. In most cases, we cannot reject the hypothesis that the probability of juvenile undesirable behavior is the same across own-parents in an unhappy relationship, a very or moderately happy parent and stepparent, and a single-parent.