The state government's use of drug sniffer dogs concentrates disproportionately in areas with Indigenous populations, a new analysis has found.

Statistical analysis of census data and police statistics has found a link between the number of young Indigenous people residing near a police station and the number of searches conducted by the dogs.

In the five parts of Sydney with the highest populations of Indigenous people aged 18-35, a person is 6.5 times more likely to be searched than average, according to the Greens research.

Greens MLC David Shoebridge, a staunch critic of the state's drug policing regime, says the analysis is proof that resources are being deployed discriminatorily.