Here is the average income by age in America. Keep in mind these are averages which included the lowest of the lows and the highest of the highs. Here is what the average income looks like in the 75th percentile: 25-year-olds: $57,000 35-year-olds: $85,000 45-year-olds: $95,000 55 and 65-year-olds: $100,000 | George Kamel