Calga, NSW 2250 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Calga is a suburb of New South Wales, postcode 2250, home to 134 residents with an established residential profile. Located in the Hawkesbury local government area (Inner Regional Australia) and roughly 60 km from the Sydney CBD.
Snapshot
Demographics
- Population
- 134
- Median age
- 43 years
- Median household income
- $2,124 /week
- Median personal income
- $812 /week
- Median family income
- $2,562 /week
- Average household size
- 3.0
- Persons per bedroom
- 1.0
- Local government area
- Central Coast (NSW)
- Statistical region (SA4)
- Central Coast
- Remoteness classification
- Inner Regional Australia
- Federal electorate
- Robertson
Property & cost of living
- Median rent
- $350 /week
- Median monthly mortgage
- $2,485
- Rent share of household income
- 16%
Schools
- Kariong Public School
- Kariong Mountains High School
- Girrakool School
Transport
Transport data refreshes monthly from state GTFS feeds.
Lifestyle & amenities
No cafes, shops, parks, gyms, libraries or playgrounds are listed in OpenStreetMap within roughly 2 km of this locality. Genuinely remote localities typically rely on services in the nearest town.
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), 59.5 km away
NBN & connectivity
Fixed Wireless serves 73.7% of the 19 resolvable premises in Calga. Most premises here are served by NBN Fixed Wireless from a nearby tower. Speed is shared with neighbours and weather-sensitive; plans up to NBN 100 are available where signal allows.
- Fixed Wireless: 73.7%
- Sky Muster (Satellite): 26.3%
Safety
- Recorded offences: 4,958 across postcode 2250 in the year to Dec 2025 (stable on the prior year).
- Most common categories: 1,373 violent offences, 1,298 theft, 536 property damage.
Nearby suburbs
Frequently asked questions
What is the population of Calga?
Calga (NSW 2250) had 134 residents at the most recent ABS Census. The median age is 43. It sits within the Central Coast (NSW) local government area.
What is the median rent in Calga?
The median advertised rent in Calga is $350/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
Are there schools in Calga?
Yes — 3 schools are listed within or near Calga covering government sectors. Nearest include: Kariong Public School (6.7 km), Kariong Mountains High School (7.3 km), Girrakool School (7.3 km). School data sourced from ACARA and state education departments.
What NBN technology is available in Calga?
Calga is predominantly served by Fixed Wireless (73.7% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Calga?
Across postcode 2250, 4,958 offences were recorded in the 12 months to Dec 2025. The most common offence categories were violent (1,373), theft (1,298), property damage (536). 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 Calga?
In Calga, 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 (59.5 km away). Long-term averages from the Bureau of Meteorology.
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: