Calga at a glance
Walk score
0
Very car dependent
Population
134
Median age 43
The brief
What to know about Calga.
The postcode for Calga is 2250 (NSW).
Calga (2250) sits in the Hawkesbury region of NSW.
Calga has roughly 134 residents, with an established, older skew. Households are mostly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
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Day to day
What it’s like to live here.
Calga scores 0/100 on walkability, which makes it car-dependent with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 26°C (mild), winter mornings around 8°C (mild). Annual rainfall lands at about 1302mm. Data comes from the Bureau of Meteorology's Sydney (Observatory Hill) station, 32.5km away.
Schooling within or near the suburb covers 1 government primary, 1 government secondary, 2 independent.
Who lives here
Demographics.
The 2021 Census put Calga's population at 134, with a median age of 43. That sits as an established, older skew. Households are mostly owner-occupied (66% own, 32% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (70% family households, 13% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
134
Median age
43
Family households
70%
Lone person
13%
Demographics data as of May 2026· ABS 2021 Census
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Sales data as of May 2026· rental-nsw
Rental and ownership
Weekly rent (house)
$400/wk
Weekly rent (unit)
$350/wk
Owner occupied
66%
Renter occupied
32%
At a deeper level
134
Median age: 43
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Safety
Crime and safety.
41
total offences in 2025
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of January 2025· State Police Open Data
Getting around
Walkability.
0
0
0
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Calga.
Local schools for Calga
View the catchment for each school to find out more.
Government School Catchment
Kariong Public School
Kariong Mountains High School
Girrakool School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
1302 mm
Hottest Month (avg max)
26.2°C
Coldest Month (avg min)
8.4°C
Monthly Rainfall (mm)
Weather data from BOM station Sydney (Observatory Hill) (33 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Calga.
- What is the Calga postcode?
- Calga is in the 2250 postcode, in NSW, in the Hawkesbury City Council region.
- Where is Calga?
- Calga is a regional suburb in NSW, postcode 2250, in the Hawkesbury City Council region.
- What is the average rent in Calga?
- The median weekly rent for houses is $400, for units it's $350.
- What schools are in Calga?
- There are 5 schools serving Calga on this page, including Kariong Public School, Ngaruki Gulgul, Kariong Mountains High School.
- How walkable is Calga?
- Calga has a Walk Score of 0 out of 100, highly car-dependent. transit score 0, bike score 0.
- What suburbs are near Calga?
- Calga is close to Mooney Mooney Creek, Mount White, Glenworth Valley, Lower Mangrove, Wendoree Park.
- What is the population of Calga?
- The population of Calga is approximately 134 (2021 Census). The median age is 43.
For Sale
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Side by side
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
Always dated
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