OSM tag name=Portland Mills matches Portland Mills in these Wikidata fields:
OSM tag name=Portland Mills matches Portland Mills, Indiana in these Wikidata fields:
OSM tag name=Portland Mills matches Portland Mills, IN in these Wikidata fields:
| Unincorporated communities in Indiana | landuse=residential, place |
| Unincorporated communities in Putnam County, Indiana | landuse=residential, place |