Sorry, forgot to comment. The boundary is estimated

@user_5359 thanks. I'll change that. That should work better when I am importing addresses to the Microsoft building polygons

Thank you!

I updated to fix the error with the postcode tag
changeset/164406355

Yes. I used the arcgis feature server dataset https://gisdata.in.gov/server/rest/services/Hosted/Address_Points_of_Indiana_Current/FeatureServer/0 (copyright text on page says no credit required)
And removed the unnecessary data then renamed the fields to addr:* and imported using JOSM

Looks like it 😂 is that easy to edit on josm?