OSM tag name=Duncans Mills matches Duncans Mills in these Wikidata fields:
OSM tag name=Duncans Mills matches Duncans Mills, California in these Wikidata fields:
OSM tag name=Duncans Mills matches Duncans Mills, CA in these Wikidata fields:
OSM tag name=Duncans Mills matches Duncan's Mills in these Wikidata fields:
| Unincorporated communities in California | landuse=residential, place |
| Unincorporated communities in Sonoma County, California | landuse=residential, place |