What suburb is postcode 2079?

Mount Colah is the primary suburb with postcode 2079 in New South Wales. In some cases multiple suburbs share the same postcode — Mount Colah is the main locality.

Which local government area is Mount Colah in?

Mount Colah (2079) is located in the Hornsby local government area in New South Wales.

What data does Stickybeak show for Mount Colah?

Stickybeak shows 16 data cards for Mount Colah (2079) covering affordability (median sale prices, rental yield, first home buyer eligibility), lifestyle (schools, childcare, walkability, commute times), risk factors (flood zones, bushfire prone land, air quality, traffic volume), and suburb growth signals (development pipeline, price trajectory, demographics).

Is Mount Colah flood prone?

Flood risk varies street by street in Mount Colah. Check the Dealbreakers section on this page for the latest NSW flood zone mapping sourced from official state government data. Always verify at the property level with a Section 10.7 certificate before purchasing.

What are the best schools near Mount Colah?

The Schools card on this page lists primary and secondary schools within the catchment area for Mount Colah (2079), including their NAPLAN performance data and distance from the suburb centre.

Is Mount Colah (2079) eligible for the First Home Buyer scheme?

The First Home Buyer eligibility card on this page shows which NSW and federal government schemes — including the First Home Guarantee, stamp duty exemptions, and the First Home Super Saver scheme — apply to purchases in Mount Colah (2079). Eligibility depends on the purchase price and your individual circumstances.

Mount Colah 2079 suburb insights

Mount Colah (2079) is a suburb in the Hornsby local government area in New South Wales. This page brings together 16 data cards on what property buyers actually need to know before committing to Mount Colah: affordability signals including median sale prices, rental yield, and first home buyer eligibility; lifestyle indicators covering school catchments, childcare quality, walkability, and commute times to the CBD; and risk factors including flood zone mapping, bushfire prone land, and air quality. The final section tracks how Mount Colah is changing — new housing supply from the development pipeline, historical price trajectory, and demographic shifts from the ABS Census. All data is sourced from NSW government and federal datasets and updated regularly. Use the section navigation above to jump between Affordability, Lifestyle, Dealbreakers, and Change.

Last refreshed April 2026 (most cards). Per-card sources show exact dates.

All data has limits. See our data caveats.

Can I afford Mount Colah?

Serviceability check

What would a typical mortgage look like in Mount Colah? Based on the suburb median of $1,620,000 (houses) and the local median household income.

Monthly repayment

$7,997/mo

6.3% variable · Apr 2026

Repayment-to-income

73.7%

Stretch

Loan assumptions

$1,296,000 loan

20% deposit ($324,000)

30-year P&I

At today's rate, repayments here would eat 74% of the typical local household's gross income. That is out of reach for most buyers.

Repayment burden vs Sydney median income

Mount Colah73.7%

Sydney median income89.1%

30% stress line

Assumes a 20% deposit and a 30-year P&I owner-occupier loan at the current Sydney variable rate. Your actual rate, deposit, and income will differ.

Sources: RBA Table F6 (rate), ABS Census 2021 G02 (income), suburb median sale.

Nearby suburbs with lower medians

Still looking? These suburbs are closer to reach.

Asquith 2077$710,00032% RTI Mount Kuring-Gai 2080$580,50026% RTI Turramurra 2074$1,073,00049% RTI

Based on median prices and a 20% deposit at 6.27% variable.

Can I afford Mount Colah?

Rental market in Mount Colah

Median weekly rent from lodged bonds. Sep 2025. Bond count suppressed by DCJ (30 or fewer lodgements this quarter).

Rents here sit around the Sydney middle. A balance of rental stock and owner-occupier demand.

Median weekly rent · Unit · All

Small sample

$630per week

Sep 2025 · bond count suppressed

Quarterly trend · last 12 quarters

Nearby suburbs · same combination

Asquith2077

…

2.3 km away

Mount Kuring-Gai2080

…

2.7 km away

Turramurra2074

…

5.5 km away

Normanhurst2076

…

5.6 km away

NSW DCJ Rental Bond Board · Sep 2025 · CC BY. Cells with 10 or fewer bond lodgements are suppressed; cells with 30 or fewer have the bond count suppressed but rent published. Figures are transacted rents, not asking rents.

Source: ABS Census 2021, Postal Areas (CC BY 4.0).

Any dealbreakers?

Air quality in Mount Colah

GoodAQI · NSW DCCEEW

04:11 AEST

Macquarie Park station · 11.0 km from centroid

12-month median: AQI 26 · Good

Air quality is generally safe for outdoor activity.

Pollutants

nearest station

PM2.5i

4.0µg/m³

24-hr avg

PM10i

15.2µg/m³

24-hr avg

NO₂i

0.9pphm

1hr reading

AQI · last 12 months · daily mean

Macquarie Park station · 365 daily points

Source: NSW DCCEEW Air Quality API (CC BY 4.0). Historical data updated weekly; live readings cached 60 minutes.

View dealbreakers as a standalone report →

DEVELOPMENT PIPELINE · NSW PLANNING PORTAL · 2079

What’s in the pipeline

NSW Planning Portal feed paused at the source for postcode 2079. Expected back by Q3 2026.

How might Mount Colah change?

Investor activity in Mount Colah

2079 · ATO Taxation Statistics · ~18-month lag

Source: ATO Taxation Statistics (CC BY 2.5 AU).

What to do next

Three steps to move from research to action.

Get pre-approved

Know your budget before you inspect. A pre-approval letter strengthens your offer.

Read our guides

Set a listings alert

See new listings in Mount Colah under the median ($1,620,000).

Search on Domain

Join the contract-review waitlist

Have your Section 66W reviewed before you sign.

Join the waitlist

Track Mount Colah.

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Compare Mount Colah with another suburb

Also in Hornsby

Comparing suburbs in the same area can sharpen your decision. Browse suburb insights for other Hornsby postcodes, or explore the full Hornsby suburb index.

Asquith 2077 Berowra 2081 Mount Kuring-Gai 2080 Normanhurst 2076

Frequently asked questions

What suburb is postcode 2079?: Mount Colah is the primary suburb with postcode 2079 in New South Wales. In some cases multiple suburbs share the same postcode — Mount Colah is the main locality.
Which local government area is Mount Colah in?: Mount Colah (2079) is located in the Hornsby local government area in New South Wales.
What data does Stickybeak show for Mount Colah?: Stickybeak shows 16 data cards for Mount Colah (2079) covering affordability (median sale prices, rental yield, first home buyer eligibility), lifestyle (schools, childcare, walkability, commute times), risk factors (flood zones, bushfire prone land, air quality, traffic volume), and suburb growth signals (development pipeline, price trajectory, demographics).
Is Mount Colah flood prone?: Flood risk varies street by street in Mount Colah. Check the Dealbreakers section on this page for the latest NSW flood zone mapping sourced from official state government data. Always verify at the property level with a Section 10.7 certificate before purchasing.
What are the best schools near Mount Colah?: The Schools card on this page lists primary and secondary schools within the catchment area for Mount Colah (2079), including their NAPLAN performance data and distance from the suburb centre.
Is Mount Colah (2079) eligible for the First Home Buyer scheme?: The First Home Buyer eligibility card on this page shows which NSW and federal government schemes — including the First Home Guarantee, stamp duty exemptions, and the First Home Super Saver scheme — apply to purchases in Mount Colah (2079). Eligibility depends on the purchase price and your individual circumstances.
How is Mount Colah changing?: The Change section on this page covers new housing supply from the development pipeline, historical price trajectory, and demographic shifts for Mount Colah (2079) using data from NSW Planning, the ATO, and the ABS.

Explore Mount Colah in depth

Dig deeper into specific topics for Mount Colah 2079: see flood risk, schools, walkability, and rental market as standalone pages. Or browse the full Hornsby suburb index to compare nearby options.