Anyone know what the PCI flag in the ACS geography file stands for?
It's either "Y" or blank. There are 524 lines in the new ACS (2022 1-year) geo file that have PCI = Y.
I suspect it designates either principal cities of CBSAs, or geo components of states and larger areas that are within principal cities of CBSAs. Can anyone confirm this?
PCI = Metropolitan/Micropolitan Principal City IndicatorThis info, along with some other important summary file documentation, is in the (suboptimally out-of-the-way) "Notes on Data, Geography and Variable…
PCI = Metropolitan/Micropolitan Principal City IndicatorThis info, along with some other important summary file documentation, is in the (suboptimally out-of-the-way) "Notes on Data, Geography and Variable Changes" in the GitHub pages for the table-based summary files.
Thanks Jonathan Schroeder!