Suburb / Locality · Area profile

Mount Colah

11 km²

High levels of university education and income define Mount Colah, an affluent suburb in Greater Sydney. It is a family-oriented community where a high proportion of residents work from home, with 40.9% doing so—far above the national figure. The area is marked by a strong sense of stability, featuring large detached houses and a population that is slightly older than the state average. This combination of professional success and family focus creates a prosperous, residential character.

An affluent area whose schools serve an equally well-off community.

A family-heavy area that's short on schools per child.

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📍 Mount Colah, Suburb / Locality

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The community is a little older than the national average, with a typical age of 40. It is notably family-heavy, as children under 15 make up 19.8% of the population, which is higher than most similar areas.

This is a diverse area where 32.8% of people were born overseas, a figure well above the national average. English and Australian are the most common ancestries, followed by Irish, Scottish and Chinese.

Many residents speak a language other than English at home (25.7%), which is much higher than in most similar areas. English remains the primary language for 72.5% of the community, with Mandarin and Hindi being the most common other languages.

About 40.6% of people report having no religion, which is well above the New South Wales figure. Christianity remains the largest religious group at 46.4%.

The area is highly qualified, with 37.7% of adults holding a bachelor degree or higher—far above the national figure. This is reflected in school completion, as 74.7% of residents finished Year 12, compared to 58.8% nationally.

Incomes are very high here; the typical weekly household income of $2,505 is well above the national figure. Nearly 40% of households earn $3,000 or more per week, which is far above the state average.

Residents generally enjoy good health, with only 3.7% needing help with daily activities, which is lower than most areas. Long-term health conditions affect 26.6% of the population, which is about the same as the state average.

Family life is a priority here, with 30.4% of people caring for children unpaid—well above the national figure. Volunteering is also common, with 17.2% of residents contributing their time.

The First Nations community is small but prosperous, with a typical personal income of $979 and a Year 12 completion rate of 68.3%, both of which are far above national figures.

Homes are larger than usual, with 2.9 people per home and a high percentage of couples with children (68.7%). Conversely, very few people live alone (15.4%) compared to the national average.

The suburb is dominated by separate houses (83.9%), most of which have three or more bedrooms. Housing is expensive, with a typical weekly rent of $525 and monthly mortgage payments that are much higher than in most areas.

Working from home is very common here at 40.9%. While the area has a high number of public transport stops, only 2.4% of people use them to commute, consistent with the high rate of home-based work.

The population is relatively stable, as the share of people who moved in the last five years is well below the national figure. Recent overseas arrivals make up 8.8% of the community.

The workforce is very active, with 69.9% of adults working or looking for work—far above the state average. Many residents work in professional roles, particularly in health care, education, and technical services.

The area is considered very walkable, with 98.6% of homes within a 10-minute walk of public transport. However, it is less convenient for schools, with only 64.7% of homes within a 15-minute walk.

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