Two speed cameras on the far north coast are among the top 10 revenue earners for the State Government.

The annual audit of the state's speed cameras was released this week.

Its list of the 10 devices which caught the most speeders in 2013 includes the cameras on the Pacific Highway at Ewingsdale and Woodburn.

The camera near Byron Bay comes in at number four, with almost 12,800 drivers snapped speeding.

That is just a handful more than the previous year.

But the camera at Woodburn is at number five and rising fast.

More than 8,300 drivers were caught there in 2013, an increase of almost 2000 from 2012.

The audit says accidents at both sites have decreased since the installation of the cameras, and both are classified as effective.

More than 8000 warning letters were sent to drivers caught by the camera at Clunes, and more than 160 court attendance notices issued to those exceeding the limit by 30 kilometres an hour or more.

