I'd like a dataset which maps (zip code, age, single) to a distribution of incomes. E.g. (60642, 18, single) is likely <$20k income. Ideally it would return a big list of (age, zip code, income, year, single) entries.

Is it possible to find this data using Google's dataset search? If not, making an easier frontend for it might be one way to add novelty.

It's also hard to figure out whether the data exists or whether your search terms are poor.