I was trying to download URBFRYN variable from the IPUMS-USA, at least take a look at the code, but it says it’s not available in any select samples. The only availability is 1980 1% metro sample, but I could not add this variable into my cart after I chose 1980 1% metro sample. Does anyone happen to know what’s going on with this variable?

There are actually two 1980 1% metro samples. The 1980 1% Metro sample does not have the URBFRYN variable. The 1980 1% Detailed Metro/Nonmetro sample does include the URBFRYN variable. When you select your sample, make sure to select the 1% metro sample furthest to the right on the 1980 row.

Hope this helps.