Even though it’s pretty much the worst type of debt to accumulate, Americans have their fair share of credit card debt. According to ValuePenguin, the average credit card debt among U.S. households is approximately $5,700. When we look at this data broken down by age, we see that 45- to 54-year-olds have the highest amount of credit card debt ($9,096 on average), while young adults under 35 have the lowest levels of debt ($5,808 on average).