Mount Colah, NSW 2079 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Mount Colah is a suburb of New South Wales, postcode 2079, home to 7,816 residents with an established residential profile. Located in the Northern Beaches local government area and roughly 24 km from the Sydney CBD.
Snapshot
Demographics
- Population
- 7,816
- Median age
- 40 years
- Median household income
- $2,505 /week
- Median personal income
- $1,032 /week
- Median family income
- $2,805 /week
- Average household size
- 2.9
- Persons per bedroom
- 0.9
- Local government area
- Hornsby
- Statistical region (SA4)
- Sydney - North Sydney and Hornsby
- Remoteness classification
- Major Cities of Australia
- Federal electorate
- Bradfield
Property & cost of living
- Median rent
- $525 /week
- Median monthly mortgage
- $2,544
- Rent share of household income
- 21%
Schools
- Mount Colah Public School
- Hornsby Heights Public School
- Asquith Public School
- Hornsby North Public School
- Mount Kuring-gai Public School
Transport
- Within 800 m walk: 2 train stops, 20 bus stops
- Within 1.6 km: 2 train stops, 94 bus stops
- Parklands Rd Opp North St
- Parklands Rd At North St
- Parklands Rd At Flora Av
- Binalong Rd After Parklands Rd
- Mount Colah Station, Platform 2
Lifestyle & amenities
- 1 café
- 5 restaurants
- 16 parks and reserves
- 1 gym
- 8 playgrounds
Climate
- Warmest month: Jan (26.0°C avg max)
- Coolest month: Jul (16.4°C avg max)
- Annual rainfall: 1211 mm
- Reference station: Sydney (Observatory Hill), 23.3 km away
NBN & connectivity
Hybrid Fibre-Coaxial serves 55.6% of the 3,035 resolvable premises in Mount Colah. Most premises here use the existing pay-TV coaxial cable, upgraded for NBN. Plans up to NBN 1000 are typically available.
- Fibre to the Premises: 31.2%
- Fibre to the Curb: 13.2%
- Hybrid Fibre-Coaxial: 55.6%
Safety
- Recorded offences: 87 across postcode 2079 in the year to Dec 2025 (down 40% on the prior year).
- Most common categories: 28 violent offences, 18 property damage, 16 theft.
Frequently asked questions
What is the population of Mount Colah?
Mount Colah (NSW 2079) had 7,816 residents at the most recent ABS Census. The median age is 40. It sits within the Hornsby local government area.
What is the median rent in Mount Colah?
The median advertised rent in Mount Colah is $525/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
Are there schools in Mount Colah?
Yes — 5 schools are listed within or near Mount Colah covering government sectors. Nearest include: Mount Colah Public School (0.8 km), Hornsby Heights Public School (1.4 km), Asquith Public School (2.1 km). School data sourced from ACARA and state education departments.
What NBN technology is available in Mount Colah?
Mount Colah is predominantly served by Hybrid Fibre Coaxial (55.6% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Mount Colah?
Across postcode 2079, 87 offences were recorded in the 12 months to Dec 2025. The most common offence categories were violent (28), property damage (18), theft (16). Crime statistics are recorded by area (postcode or LGA), not by individual suburb. Data sourced from each state's crime statistics agency.
What is the climate like in Mount Colah?
In Mount Colah, mean daily temperatures range from 13.8°C to 21.8°C and annual rainfall is 1,211 mm measured at the Sydney (Observatory Hill) weather station (23.3 km away). Long-term averages from the Bureau of Meteorology.
What public transport options are in Mount Colah?
96 public transport stops are mapped within 1.6 km of the Mount Colah centroid. Within 800 m, you'll find 20 bus stops, 2 train stops. Stop data is sourced from state government GTFS feeds.
Sources & methodology
Demographics from ABS Census. Property data from SQM Research. Climate from Bureau of Meteorology. Schools from ACARA. NBN from NBN Co. Amenities from OpenStreetMap. See full methodology.
Additional sources for this profile: