There is one place named Irwin Hill in Canada.
All places in the world called "Irwin Hill".
Wellington (4)
Windsor (4)
Victoria (3)
Kingston (3)
Havelock (3)
Sidney (3)
Centreville (3)
Princeton (3)
Borden (3)
Westport (3)
Milton (3)
Richmond (3)
Benton (3)
Saint Andrews (3)
Selkirk (3)
Tracadie (3)
Radisson (2)
Saint Louis (2)
Stanley (2)
Waterloo (2)
Alma (2)
Boundary (2)
Chipman (2)
Durham (2)
Grand Falls (2)
Laflèche (2)
Morden (2)
Rosedale (2)
Seaforth (2)
Tiverton (2)