The following regions worldwide are known to have unusually high percentages of rh negatives:
(In alphabetical order)
Al-Jouf Province of Saudi Arabia
Atlas Mountains, Morocco (to be verified)
Bunschoten-Spakenburg, Netherlands
Chile (areas with high Basque populations)
Safien, Tenna and Versam in Rhone Valley, Switzerland
Senegal (small, isolated tribe)
So how about on a national level?
On a national level, Australia appears to be the highest. Brazil also shows studies with similar numbers, but just like in other countries with high diversity, the overall numbers of the country will not likely add up to the likes of Australia’s.
See also: