Castle Rock
NSWCastle Rock is a growing suburb in NSW with 131 residents.
- SAL code
- 10847
- SA2
- 106041127
- Population
- 131
- LGA
- Muswellbrook
Castle Rock, NSW had 131 residents at the 2021 Census, with the broader statistical area showing a 4.5% growth over the last five years. The predominant age group is 55-64 years, and the median age sits at 44. Households are most often couples with children, and those with a mortgage repay a median of $1,695 a month. Around 58.1% of homes are owner-occupied, with the largest single tenure being rented at 41.9%. Most dwellings are separate houses, making up 100.0% of the suburb's housing stock. Source: ABS Census 2021 and Estimated Resident Population, with amenity counts from state Open Data and OpenStreetMap.
Population
?131
Suburb · Census 2021
5-Year Growth
+4.5%
3yr: +3.4% · 10yr: +3.9%
SA2 · 5yr
Household Income
$3,041/wk
Suburb · Census 2021 median
Median Age
44
Suburb · Census 2021
Socio-Economic Index
?5/10
SA2 · middle-range
Unemployment
?2.4%
SA4 · Q4 2025
Hospitals
No data for this suburb
Childcare services
No data for this suburb
Parks & green space
No data for this suburb
Transport stops
No data for this suburb
Dwelling approvals
?3
Muswellbrook · Feb 2026
Median Weekly Rent
Based on NSW rental bond lodgements, aggregated at postcode level. All SALs sharing this postcode show the same median.
Median House Sale Price
Source: state Valuer-General (suburb-level quarterly medians).
→ Calculate stamp duty on this suburb's median price→ Estimate mortgage repayments→ Calculate rental yield (price + median rent)
Safety & Crime
2025 Q4Reported incidents from NSW police. Offence rates may not reflect all crime.
Population over time — Muswellbrook Surrounds (SA2)
ABS publishes annual estimates only at SA2; Castle Rock suburb alone is ~131 (Census 2021).
Growth at a Glance
Population grew from 3,877 to 4,264 over 24 years, averaging 0.4% per year.
Government school catchment
Intake zonePrimary
Muswellbrook PS95.8%
- Denman PS 4.2%
- Aberdeen PS 0.0%
Secondary
Muswellbrook HS100.0%
- Scone HS 0.0%
Source: NSW Department of Education — School Intake Zones. Boundaries can be amended without notice; confirm with the school before relying on enrolment.
Profile
Census snapshot
Housing
Almost entirely detached houses (100%), mixed tenure (58% own or mortgage).
Dwelling mix
Tenure
Number of bedrooms
Bushfire & flood risk
Hazard data is not yet available for NSW.
Source when available: NSW Rural Fire Service (BFPL) and NSW DPHI EPI Flood.
Planning zones
2 zones in suburb| Code | Zone | % covered | Area |
|---|---|---|---|
| RU1 | ZoneRural | 70.2% | 64.02 km² |
| C3 | ZoneEnvironmental | 29.8% | 27.13 km² |
Source: NSW DPHI EPI Land Zoning (ZONE_NSW/2026-04-29/1eccf1a530fa1be5) · As of Apr 2026. Zone boundaries are amended periodically; verify the exact property with the relevant council before relying on permitted use.