🔍

Mount Colah

NSW 2079 • Greater Sydney

7,816
Population (2021)
$130,260
Median Household Income
11.06 km²
Area
$525/wk
Median Rent
BushlandFamily-FriendlyLeafyNatureCommuter-Friendly

About Mount Colah

Mount Colah is a leafy outer suburb of northern Sydney, located 24 kilometres north of the CBD within the Hornsby Shire. With a population of approximately 7,800, it is one of Sydney's most northerly suburbs and the second highest by elevation at 206 metres. The suburb is bordered by Ku-ring-gai Chase National Park to the east, giving it a distinctly bushland character. Around two-thirds of residents are Australian-born, with a predominantly family-oriented demographic.

Mount Colah offers a tranquil, nature-focused lifestyle while maintaining convenient rail access to Sydney. The suburb is a gateway to Ku-ring-gai Chase National Park, with popular walking tracks including the Kalkari Discovery Centre and Bobbin Head trail. Local amenities centre on the Pacific Highway and the area around the train station, with a small shopping strip, cafes, and services. Families are attracted by the quiet streets, bushland setting, quality local schools, and strong community feel. The suburb is popular with professionals who commute to the CBD via the North Shore line.

Mount Colah falls under postcode 2079 and is governed by Hornsby Council (LGA). For state elections, residents vote in the Hornsby electorate.

📍 Location

State
New South Wales
Postcode
2079
Urban Area
Hornsby - Ku-ring-gai
LGA / Council
Hornsby
Federal Electorate
Berowra
State Electorate
Hornsby
Type
Major Urban
Timezone
Sydney (UTC+10)
Coordinates
-33.67°, 151.13°
Statistical Area
Greater Sydney
Area
11.06 km²
Elevation
117m

🏷️ Property Prices 2025

Median sale prices in Mount Colah for 2025. Based on every residential settlement recorded by the NSW Valuer General in 2025.

🏡House
$1.7M
108 sales · ▲ 4.9% vs 2024
🏢Unit / Apartment
$660K
37 sales · ▲ 3.1% vs 2024

Source: NSW Valuer General — Property Sales Information. Strata-titled sales are counted as units; all others as houses. Suburbs with fewer than 5 sales in a category are omitted.

🏠 Housing 2021 Census

Median Rent (weekly)
$525
Median Mortgage (monthly)
$2,544
Avg Household Size
2.9 people
Median Age
40 years
Social Housing (% of dwellings)
0.5%

6 state housing + 6 community housing dwellings (ABS 2021 Census)

🚌 Transport & Commute

Nearest Train Stations

Mount Ku-ring-gai
1.5 km
18 mins
Asquith
2 km
24 mins
Hornsby
4.5 km
55 mins

Bus Services

  • 595 — Hornsby via Pacific Highway 12 mins
  • 596 — Wahroonga via Asquith 15 mins

Commute to Sydney CBD

Distance
24 km
By Train
45-55 mins
By Car (Peak)
50-70 mins
By Car (Off-Peak)
30-40 mins

🛣️ Direct train to Central via T1 North Shore line. Express services from Hornsby cut commute time.

Walkability Somewhat Walkable

Station area has a small shopping strip; most residential streets require a car for major errands

🛒 Supermarkets Nearby

No major supermarkets listed for this suburb.

🎓 Schools

🚔 Crime Statistics LGA-wide

These are the latest 2025 rates for the Hornsby Local Government Area, which contains Mount Colah. Rates are per 100,000 residents; trends compare 2 and 10 year periods ending Dec 2025.

Break & enter (dwelling)
72.3 / 100k
2yr Stable 10yr Down 9.3%
Motor vehicle theft
43.3 / 100k
2yr Stable 10yr Stable
Non-DV assault
135 / 100k
2yr Stable 10yr Down 1.2%
Robbery (unarmed)
7.8 / 100k
2yr — 10yr —
Steal from vehicle
101.4 / 100k
2yr Stable 10yr Down 6.8%
View all 62 offence types for Hornsby →

Source: NSW Bureau of Crime Statistics and Research (BOCSAR)

🎓 Educational Institution Attending 2021 Census

School Sector Breakdown

👥 Demographics

Census 2016
7,095
Census 2021
7,816
▲ 10.2% growth

Population Growth

Gender Distribution (Census 2021)

Personal Income 2016
$43,056
Personal Income 2021
$53,664
▲ 24.6% increase

2021 Census income breakdown

Personal = median for one earner. Household = all members of a dwelling pooled. Family = related members only. Annual = weekly × 52.

Personal
$53,664 / yr
$1032/wk
Household
$130,260 / yr
$2505/wk
Family
$145,860 / yr
$2805/wk

Personal Income Comparison (2016 vs 2021)

📊 Population: ABS Census 2021
💰 Income: ABS Census 2021

🌍 Country of Birth 2021 Census

Born in Australia 5,137
Born Overseas 2,565

Top Countries of Birth (excl. Australia)

  • 1. England 323
  • 2. India 289
  • 3. China 248
  • 4. Philippines 157
  • 5. Iran 149
  • 6. New Zealand 133
  • 7. South Africa 98
  • 8. South Korea 78
  • 9. Sri Lanka 58
  • 10. Hong Kong 56

🧬 Ancestry 2021 Census

Top ancestries reported (people may report up to two)

English 2,640
Australian 2,488
Irish 750
Scottish 738
Chinese 549
Indian 361
Italian 300
German 273
Filipino 222
Dutch 142

👨‍👩‍👧 Parents' Birthplace 2021 Census

3,185
Both parents born in Australia
3,350
Both parents born overseas
1,152
One parent AU, one overseas

🛐 Religion 2021 Census

Christianity
46.4%
No Religion
40.6%
Hinduism
3.8%
Buddhism
2.3%
Islam
2.0%
Sikhism
0.6%
Judaism
0.4%

📊 Age Distribution 2021 Census

0-4 years
462 (5.9%)
5-14 years
1,090 (13.9%)
15-19 years
533 (6.8%)
20-24 years
412 (5.3%)
25-34 years
834 (10.7%)
35-44 years
1,148 (14.7%)
45-54 years
1,193 (15.3%)
55-64 years
1,088 (13.9%)
65-74 years
621 (7.9%)
75-84 years
332 (4.2%)
85+ years
94 (1.2%)

Nearby Suburbs

Frequently Asked Questions

What is Mount Colah known for? +

Mount Colah is a leafy outer suburb of northern Sydney, located 24 kilometres north of the CBD within the Hornsby Shire. With a population of approximately 7,800, it is one of Sydney's most northerly suburbs and the second highest by elevation at 206 metres.

How far is Mount Colah from Sydney CBD? +

Mount Colah is approximately 24 kilometres from Sydney CBD. The drive takes around 50-70 mins during peak hour and 30-40 mins off-peak. By train, the journey takes approximately 45-55 mins.

Does Mount Colah have public transport? +

Mount Colah is served by Mount Colah station (0 km, approximately 0 mins walk) on the T1 North Shore & Western Line. Local bus services including 595 also connect residents to Hornsby via Pacific Highway.

What is the population of Mount Colah? +

According to the 2021 Census, Mount Colah has a population of approximately 7,816 residents.

Is Mount Colah a good place to live? +

Mount Colah is considered a good place for families, with a suburban setting and access to schools, parks, and local services. Its community character makes it appealing to households at various life stages.

What is the postcode for Mount Colah? +

The postcode for Mount Colah in NSW is 2079.

What is the average income in Mount Colah? +

Based on the 2021 Census, the median personal income in Mount Colah is about $1,032 per week (around $53,700 per year). The median household income is $2,505 per week and the median family income is $2,805 per week.

What is the median house price in Mount Colah? +

As of 2025, the median house price is $1,700,000, up 4.9% on the previous year, and the median unit/apartment price is $660,000, up 3.1% on the previous year. Figures are based on NSW Valuer General — Property Sales Information.

What is the age profile of Mount Colah? +

The median age in Mount Colah is 40. The largest age group is 45–54 (1,193 residents, around 15%). Around 27% of residents are under 20 and about 13% are aged 65 or older. (2021 Census)

Is Mount Colah a safe area? +

Crime statistics are recorded at the Local Government Area level. Mount Colah is part of the Hornsby LGA — see the Crime Statistics section on this page for the latest recorded offence rates per 100,000 residents, along with 2-year and 10-year trends.

How much is rent in Mount Colah? +

In Mount Colah, the median weekly rent is $525, and the median monthly mortgage repayment is $2,544 (2021 Census).