> I am trying to get an idea of how many MorphOS users there are
> in the USA and where they are located.

Maybe it could be of help to have a look at the existing lists and maps. I'm sure there's also obsolete information in there but on the other hand some information might be recent but the associated users not necessarily members here on MorphZone.

https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6308&forum=3&start=35 (probably almost completely obsolete)
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6395&forum=3&start=6
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6395&forum=3&start=19