How Income Changes by Age: The Earnings Curve Explained

Income has a shape, and it isn't a straight line

Most people intuitively expect income to climb steadily with experience. The data says something different: it rises steeply, flattens out, peaks in middle age, and then falls — often sharply.

Here's the actual curve, from the Census Bureau's ACS 2020–2024 5-Year Estimates (table B19049, median household income by age of the householder):

Read the last column as: where a household earning exactly that age group's median would rank against all US households, of every age.

The shape is unmistakable. A typical under-25 household earns barely more than the typical 65+ household, and both sit well below the national median of $80,734. Meanwhile the 45–64 group's median is more than double the under-25 figure.

A note on the brackets

The Census publishes only four age brackets in this table — under 25, 25–44, 45–64, and 65+. That's coarser than most people want, and it has a real consequence for how precisely anyone can describe the peak.

You'll often see the earnings peak placed specifically at 45–54. This dataset can't confirm or deny that, because 45–54 and 55–64 are folded into a single published figure. What the data does support is that the peak falls somewhere in the broad 45-to-64 stretch, and that both the years before it and the years after it are lower.

That's why this site's age bands come in pairs sharing one number: the 25–34 and 35–44 bands both use the 25–44 figure, and 45–54 and 55–64 both use the 45–64 figure. It's less precise than we'd like, but it's the real published statistic rather than a split we invented.

Why your twenties look bad on paper (and why that's fine)

If you're 26 and the calculator tells you you're in the bottom half nationally, the honest response is: so is nearly everyone your age.

The under-25 median lands around the top 72% nationally. That means a typical young household — median for its age, doing nothing wrong — ranks below roughly seven in ten US households overall. That's not a personal failure showing up in the numbers. It's the structure of a career.

Several things stack up against young households at once:

• Fewer years of raises. Compounding annual increases are most of what separates a 45-year-old's salary from a 25-year-old's in the same field.
• Career stage. Entry-level roles pay entry-level wages almost by definition, regardless of the industry.
• Household composition. Young adults are more likely to live alone or with roommates, and household income counts one household's combined earnings. A solo 26-year-old is measured against households that often contain two full-time earners — see household income vs. individual income for how much that alone shifts a result.

Compare a 26-year-old against everyone and they look behind. Compare them against other 26-year-olds and the picture usually changes completely, which is exactly why this site offers an age-band comparison alongside the overall one.

Why income falls after 65

The drop from $97,843 to $58,390 is the largest single move on the curve, and it's mostly not about people earning less for the same work. It's about the composition of income changing.

Retired households draw on Social Security, pensions, and withdrawals from savings rather than wages. Some of that shows up in the ACS as income and some of it doesn't in the way you'd expect — drawing down a 401(k) balance you already accumulated isn't the same as earning a salary, but the household's measured annual income is genuinely lower either way.

This is also the point where income becomes the wrong yardstick entirely. A 68-year-old with a paid-off house, no commute, no childcare costs, and decades of accumulated savings can be far more financially secure than a 42-year-old earning twice as much. Income measures the flow; it says nothing about the stock.

That's why the age curve for wealth runs almost the opposite direction. In the Federal Reserve's Survey of Consumer Finances, median household net worth rises from $39,000 for the under-35 group to $372,750 for the 65+ group — the age bracket with the lowest income has the highest net worth. Our net worth by age benchmarks walks through those numbers in full, and reading the two curves together gives a far more honest picture than either one alone.

What to do with this

Three practical takeaways:

Compare within your age band first. A national percentile answers "where do I stand among all households." An age-band percentile answers "am I on track for where I am in life." The second is usually the more actionable question, and this site computes it by rescaling your income against your age group's median before checking it against the national curve.

Expect the curve, and plan around it. If you're in the 45–64 stretch, you are statistically near your peak earning years. That's the window where saving rate matters most, because the income side of the equation is unlikely to keep climbing indefinitely.

Don't read a low twenties percentile as a verdict. It's a starting position on a curve that, for most people, rises for another two decades.

Curious where you land against both the whole country and your own age group? Run your numbers.