Grand Secret, QLD 4820 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Grand Secret is a suburb of Queensland, postcode 4820, home to 151 residents with a settled, mature community. Located in the Charters Towers local government area (Very Remote Australia) and roughly 1073 km from the Brisbane CBD.
Snapshot
Demographics
- Population
- 151
- Median age
- 49 years
- Median household income
- $1,354 /week
- Median personal income
- $628 /week
- Median family income
- $1,854 /week
- Average household size
- 2.2
- Persons per bedroom
- 0.7
- Local government area
- Charters Towers
- Statistical region (SA4)
- Townsville
- Remoteness classification
- Very Remote Australia
- Federal electorate
- Kennedy
Property & cost of living
- Median rent
- $230 /week
- Median monthly mortgage
- $1,296
- Rent share of household income
- 17%
Schools
- Blackheath and Thornburgh College (Charters Towers)
- Charters Towers State High School
- Charters Towers Central State School
- Richmond Hill State School
- Charters Towers School of Distance Education
Transport
Transport data refreshes monthly from state GTFS feeds.
Lifestyle & amenities
- 4 cafés
- 4 restaurants
- 4 pubs and bars
- 20 parks and reserves
- 8 gyms and fitness centres
- 1 library
- 4 supermarkets
Climate
Climate normals from the Bureau of Meteorology.
NBN & connectivity
Fibre to the Node serves 88.8% of the 98 resolvable premises in Grand Secret. Most premises here connect via fibre to a street cabinet, then copper into the home. Speeds depend heavily on the copper run length — NBN 100 is rarely achievable on long runs.
- Fibre to the Node: 88.8%
- Fixed Wireless: 11.2%
Safety
- Recorded offences: 1,670 across the Charters Towers LGA in the year to April 2026 (up 14% on the prior year).
- Most common categories: 564 theft, 409 drug offences, 331 violent offences.
Frequently asked questions
What is the population of Grand Secret?
Grand Secret (QLD 4820) had 151 residents at the most recent ABS Census. The median age is 49. It sits within the Charters Towers local government area.
What is the median rent in Grand Secret?
The median advertised rent in Grand Secret is $230/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
Are there schools in Grand Secret?
Yes — 5 schools are listed within or near Grand Secret covering independent, government sectors. Nearest include: Blackheath and Thornburgh College (Charters Towers) (1.4 km), Charters Towers State High School (1.6 km), Charters Towers Central State School (2.1 km). School data sourced from ACARA and state education departments.
What NBN technology is available in Grand Secret?
Grand Secret is predominantly served by Fibre to the Node (88.8% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Grand Secret?
Across the surrounding area, 1,670 offences were recorded in the 12 months to APR26. The most common offence categories were theft (564), drug offences (409), violent (331). Crime statistics are recorded by area (postcode or LGA), not by individual suburb. Data sourced from each state's crime statistics agency.
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: