About the Illawarra and South Coast region

The Illawarra and South Coast region comprises three SA4s - Capital Region, Illawarra, and Southern Highlands and Shoalhaven. This region is forecast to comprise an 8.4% share of New South Wales' population growth by 2046.
The Illawarra SA4 is historically known for its coal mining industry and Port Kembla in Wollongong, which will serve as a future hub for green hydrogen. This SA4 is picturesque, straddled by both the Blue Mountains and coastal beaches. It is also home to the regional centres of Shellharbour and Kiama.

We're currently finalising our forecasts for the Capital Region and Southern Highlands. Subscribe to updates to be notified when analysis for those areas is added to this page.

Key findings

Illawarra

Over the forecast period, the Illawarra SA4 is projected to be home to approximately 419,000 people by 2046, this is a 105,000-person increase on its 2021 population of around 313,000 people. This SA4 contains around half the growth in the region by 2046. Most of this growth is concentrated in greenfield areas, the Wollongong CBD, and medium-density centres. More established suburbs within Wollongong, Shellharbour, and Kiama stay stable over the forecast period. Whereas greenfield areas surrounding established areas more than double in population. 

In the Wollongong LGA the largest growth in population is seen in the suburbs of Avondale, Cleveland, Marshall Mount, and Yallah (Dapto-Avondale SA2). This SA2 grows substantially from around 24,000 people in 2021 to 60,000 by the end of the forecast period, with much of this growth occurring in the latter half of the forecast. This is due to the SA2 containing Stages 3, 4, and 5 of the West Dapto Release Area, and as stages 1 to 2 have been consistently building out it is assumed this trend will continue. Another area of growth is in the Wollongong CBD (SA2s Wollongong - East and Wollongong - West), a consistent trend of apartment dwellings being constructed with a healthy pipeline of approved apartments ensures a growth in population from around 32,000 people in 2021 to approx. 48,000 in 2046. As mentioned, Stages 1 and 2 of the West Dapto Release Area are currently underway in the Horsley - Kembla Grange SA2, which will see its population increase from around 12,000 in 2021 to 32,500 by 2046 - with much of this growth occurring midway through the forecast period. 

Within the Shellharbour LGA the largest growth is again seen in greenfield areas, with the suburbs of Calderwood and Tullimbar (Albion Park - Macquarie Pass SA2) experiencing large amounts of growth in the front end of the forecast with master planned communities like 1881 Tullimbar and Calderwood Valley currently under construction. This growth does subside midway through the forecast due to developable greenfield areas being used up. Also within Shellharbour LGA is the Shell Cove Waterfront Precinct development (Shellharbour - Flinders SA2), with many of its apartment developments assumed to commence at the beginning of the forecast period. 

The Kiama LGA sees stable low level growth through the forecast period, as many of these areas are already established and have limited opportunities for greenfield development. The majority of growth in this LGA is concentrated in the suburbs of Kiama and Kiama Heights (Kiama SA2), where there are opportunities for greenfield development and densification of the town centre. 

What share of Australia's growth will occur in New South Wales?

Read our forecast results and analysis for New South Wales on the resources page. Watch the webinar recap or see a summary slide pack to learn what's driving growth in Australia, and each region of the state.

Forecast results

The following forecast information presents the combined numbers for Capital Region, Illawarra, and Southern Highlands and Shoalhaven SA4s.

Learn more about the different options to access these forecasts for Local Government Areas (LGAs), suburbs, custom catchments or the entire state or nation here.

1 national forecasting program.

6 ways to explore.

Commentary and analysis from our specialist forecasters.

Meet the full team behind the National Forecasting Program →