This paper investigates the how the volunteering behaviors of family and household members influence an individual’s decision to volunteer. Using data from the 2005 Current Population Survey’s Volunteering Supplement, I test how living with volunteers and living with people who have never volunteered affect volunteering. I find that living with volunteers dramatically increases the likelihood of volunteering, especially for religious volunteering. The more volunteers the person lives with, the higher the person’s probability of volunteering. People who live with others who say that they have never volunteered in their lives are much less likely to volunteer and volunteer fewer hours. Living with volunteers also changes the methods by which people become involved in volunteering.