Revealed: bulk-bill rates divide along political lines

The figures, released on the health department's website under Freedom of Information laws, show Australia's average bulk-billing rate is steady at just above 80%, but they reveal stark divisions along political lines.

Prime Minister Tony Abbott's seat of Warringah, which has Australia's third highest proportion of high-income households, has the lowest bulk-billing rate in the state of NSW, which at 65.5% is also the ninth lowest in Australia.

Treasurer Joe Hockey's seat of North Sydney has a 72.8% bulk-billing rate, and Health Minister Peter Dutton's seat of Dickson has a rate a whisker below average at 79.9%.

Ed Husic's safe Labor seat of Chifley in Sydney's west, which has a high proportion of public housing and Australia's fourth lowest median age, has the highest bulk-billing rate at 99.1%.

Of the 10 electorates with the highest bulk-billing rates, the top nine are Labor seats in NSW. They include the marginal seats of Greenway