There has been a 40 per cent drop in alcohol-related assaults at licensed premises in Kings Cross in the past year and assault rates are the lowest statewide in a decade.

The dramatic decrease occurred during the same year in which Daniel Christie died from an alleged one-punch assault on New Year's Eve and the introduction of lock-out laws coincided with a fall in the number of visitors to the strip.

Assault rates in Kings Cross, Sydney city and across NSW are the lowest recorded in 10 years since 2004, according to the latest NSW Bureau of Crime Statistics and Research findings for the period from October last year to September this year.

Kings Cross – where teenager Thomas Kelly also died from a punch to the head in July 2012 – recorded the most significant drop in all types of assault – alcohol and not alcohol-related, at licensed premises and outdoors.