Toelken (2013) in describing several new Hibbertia species, mostly from the Sydney Basin, states that H, riparia only occurs in Tasmania, southern Victoria and South Australia. However, he does not clarify what specimens previously referrable to this species in far southern NSW might be. Although no longer correct H. riparia is retained here until the taxonomy is sorted out.
Hibbertia riparia is listed in the following regions:
Canberra & Southern Tablelands | Southern Highlands | Albury, Wodonga | South Coast | Central West NSW | Riverina Murray | New South Wales North Coast | Hume | Barwon South West | Grampians | Tasmania