Three-quarters of the fatal crashes during the June long weekend happened on rural roads, prompting police to warn local motorists of the potential dangers when driving on these well-travelled roads.
Four people died in separate crashes across NSW on the Queen's Birthday weekend, with three of these occurring in southern NSW.
Operation Stay Alert commenced on Friday, June 7 and concluded on Monday, June 10.
Traffic and Highway Patrol Commander Assistant Commissioner Michael Corboy said the weekend saw several fatal crashes, where vehicles left the road and hit other objects.
"While the causes of all the crashes on the weekend are still under investigation, I would encourage all drivers or riders to be aware of their surroundings and take breaks if they are tired," Assistant Commissioner Corboy said.
"It doesn't matter where you are travelling to - crashes do not discriminate. They can happen anywhere and at any time."
Key statistics (Progressive Total since Friday 7 June 2019):
Speed infringements: 4648 (1046 in Northern NSW)
Seatbelt offences: 498
Breath tests: 224,965
PCA charges: 293
Major crashes: 269 (44 in Northern NSW)
People injured: 78 (20 in Northern NSW)
Lives lost: 4 (none in Northern NSW)