I would like to find a dataset of basic demographic and economic data at core-based statistical area level for the US. Ideally, it should include variables like population, median income, age distribution, unemployment rate from 2016 or up.
I have looked for this at Census, ACS, FRED, GitHub, various statistical packages that hit data APIs, and googled, but I have not found anything like this. I have found similar data for states in the past using some of the above.
Does this actually exist somewhere? If not, is the best way to build that by aggregating county or zip/zcta data with a cross-walk?