How Labor's 'new working class' helped the party secure victory in New South Wales

Data shows public sector workers mostly live in west and south-west Sydney, and the Central Coast. (AAP: Dean Lewins)

Labor's "new working class" were critical to the party's New South Wales election victory, a former Labor strategist says.

Analysis of census data showed the largest proportion of public sector workers live in west and south-west Sydney, and the Central Coast.