Best guess from below link I’d say max 250k which is half of City of Sydney 240k (half the suburbs fall under Souths) plus Waverley 80k and Woollahra 60k. Penrith alone has 210k then add Hawkesbury 70k, Blue Mountains 80k and assuming half of Blacktowns 350k. So more than 500,000. This doesn’t include rural and regional areas.
https://en.m.wikipedia.org/wiki/Local_government_areas_of_New_South_Wales
For what it's worth... although local juniors are have limited relevance to success in modern professional football, it would be good to see the club, and the region, making more of an active effort to raise junior participation.
1. I believe that the area could fit up to 4 or 5 more junior clubs with a "build it and they will come" approach even if they started with entering only a handful of age groups. The demographics of the area are changing. The city and kings X side is rapidly attracting a younger crowd, and the idea that rich people aren't or won't be interested in RL is backwards outdated thinking - especially with Union on its knees.
Queens Park, Vaucluse, Woolahra, Kings Cross-Rushcutters, Ultimo could all potentially attract new players to the game if someone made the effort.
2. A closer association with Norths - dare I say a merger, at lower levels - to bring at least the lower North Shore into the Roosters banner. The distances involved would be comparable to the Parra district which runs from Rouse Hill to Cabramatta and would be beneficial to both clubs.
Anyway, this is neither here nor there for the game tonight...
Good luck Panthers, you'll need it