Located in New South Wales within the The Hills Shire local government area, Castle Hill is a well-populated suburb (postcode 2154). It is home to about 40,874 residents, with an established demographic and a median age of 42. Households earn a median income of $133K per year, with an average household size of 3 people. NSW employment has moved +1.2% year-on-year in the official ABS Labour Force trend series, which provides the broader jobs backdrop for this suburb. NSW also had 35 Commonwealth-backed major projects under construction, 17 underway, and 67 in planning as at 2025-09-01, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are professionals, managers, clerical & administrative. Employment in the area leans toward healthcare and professional services. The top ancestries reported are English, Chinese, Australian.
The median house price in Castle Hill is $2.6 million, having moved higher by 4.8% over the past year. Units have a median price of $999,000 (-0.2% YoY). The current median weekly rent is $820. This gives a gross rental yield of approximately 1.6%. The median monthly mortgage repayment is $3,000.
Castle Hill is served by 10 schools, including 6 primary, 3 secondary, 1 special. The average ICSEA score is 1124, which is well above the national average of 1,000. Public transport access includes 2 rail stations, 225 bus stops. The crime rate in the The Hills Shire LGA is low at 1,286 incidents per 100,000 population.
From an investment perspective, Castle Hill shows a gross rental yield of approximately 1.6%, rated as low yield. Property prices are above the state median ($2.6M/$1.5M), placing it in the premium segment. The price-to-income ratio of 19.6x is considered stretched. House prices have moved +4.8% year-on-year.