Our latest population and housing forecasts for Sydney – Outer West and Blue Mountains, which covers parts of the Penrith, Blue Mountains, Hawkesbury and Wollondilly council areas, including Penrith, St Marys, Richmond, Windsor, Warragamba, Springwood, Katoomba and Blackheath.
New South Wales' share of national growth is set from the national drivers. This region's share of New South Wales is built from development assessed on the ground.
334,001
Population, 2021
414,765
Population, 2046
+80,764
Total growth to 2046
+42,038
Additional dwellings
| Population | Dwellings | Age structure, % | |||||
|---|---|---|---|---|---|---|---|
| Year | Total | Change | Total | Change | 0–14 | 15–64 | 65+ |
| 2021 | 334,001 | — | 130,579 | — | 20.4 | 64.5 | 15.2 |
| 2026 | 350,696 | +16,695 | 137,247 | +6,668 | 19.5 | 63.9 | 16.6 |
| 2031 | 366,854 | +16,158 | 145,330 | +8,083 | 18.8 | 63.7 | 17.5 |
| 2036 | 382,521 | +15,667 | 153,784 | +8,454 | 18.3 | 63.8 | 17.9 |
| 2041 | 398,451 | +15,930 | 162,824 | +9,040 | 18.2 | 63.7 | 18.1 |
| 2046 | 414,765 | +16,314 | 172,617 | +9,793 | 18.3 | 63.7 | 18.1 |
Different things drive population change at different scales. We form a view at each level, and each level constrains the one below it.
| Sub-area (SA3) | Area character | Capacity used by 2046 |
|---|---|---|
| Blue Mountains | 19.2% | |
| Penrith | 58.9% | |
| Richmond – Windsor | 25.2% | |
| St Marys | 68.7% | |
| Sydney – Outer West and Blue Mountains total | 55.2% |
Capacity used is the share of an area's assessed dwelling capacity that the forecast draws down by 2046. Assessed capacity is post-census capacity across 438 tracked residential development sites, so it counts what those sites can hold, not every theoretical dwelling a planning control would permit.
| Site | Location | Type | Status |
|---|---|---|---|
| Orchard Hills Pda | 122-148 Kingswood Road ORCHARD HILLS | Greenfield | Structure plan / Under-utilised (med-high density) |
| Penrith potential development | Penrith | Redevelopment | Structure plan / Under-utilised (med-high density) |
| Highland Views Estate - Glenmore Park | MULGOA | Greenfield | Approved |
| Glenmore Park Stage 3 | 2265-2327 The Northern Road Road MULGOA | Greenfield | Approved |
| Orchard Hills Pda | 233-35 Castle Road ORCHARD HILLS | Greenfield | Structure plan / Under-utilised (med-high density) |
The largest of the 75 suburbs and localities in this region. Every one of them is forecast at small-area level, and any combination can be built into a custom catchment through Placemaker.
Plus 55 more. Search for any suburb or locality on our forecast analysis page.

Our forecasts are not commissioned by any government, so they give an independent view.

Forecast at small-area level, so they can be built up into any catchment you need, such as a school catchment, a retail trade area or a utility service area.

A single national model, not a collection of unconnected local studies.

Built on a national development sites layer maintained by our own forecasters. 438 development sites assessed in this region alone.
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Placemaker gives you the population, housing and development forecast for any catchment you draw inside this region, by single year, with the development pipeline behind it.