Diddillibah, QLD 4559 — Suburb Profile
Last reviewed: · By Knowburb Research Team
In short
Diddillibah is a suburb of Queensland, postcode 4559, home to 1,703 residents with a settled, mature community. Located in the Sunshine Coast local government area (Inner Regional Australia) and roughly 90 km from the Brisbane CBD.
Snapshot
Demographics
- Population
- 1,703
- Median age
- 46 years
- Median household income
- $1,424 /week
- Median personal income
- $683 /week
- Median family income
- $2,080 /week
- Average household size
- 2.6
- Persons per bedroom
- 0.9
- Local government area
- Sunshine Coast
- Statistical region (SA4)
- Sunshine Coast
- Remoteness classification
- Inner Regional Australia
- Federal electorate
- Fisher
Property & cost of living
- Median rent
- $330 /week
- Median monthly mortgage
- $2,200
- Rent share of household income
- 23%
Schools
- Montessori International College (Forest Glen)
- Kuluin State School
- Bli Bli State School
- Stella Maris School (Maroochydore)
- Sunshine Coast Grammar School (Forest Glen)
Transport
Transport data refreshes monthly from state GTFS feeds.
Lifestyle & amenities
- 1 park or reserve
Climate
- Warmest month: Jan (29.2°C avg max)
- Coolest month: Jul (21.0°C avg max)
- Annual rainfall: 1031 mm
- Reference station: Gold Coast Seaway, 82.4 km away
NBN & connectivity
Fibre to the Node serves 67.7% of the 770 resolvable premises in Diddillibah. 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 Premises: 29.5%
- Fibre to the Node: 67.7%
- Fixed Wireless: 2.7%
- Sky Muster (Satellite): 0.1%
Safety
- Recorded offences: 23,962 across the Sunshine Coast LGA in the year to April 2026 (down 6% on the prior year).
- Most common categories: 13,472 theft, 2,615 drug offences, 2,154 violent offences.
Frequently asked questions
What is the population of Diddillibah?
Diddillibah (QLD 4559) had 1,703 residents at the most recent ABS Census. The median age is 46. It sits within the Sunshine Coast local government area.
What is the median rent in Diddillibah?
The median advertised rent in Diddillibah is $330/week, based on SQM Research listings data. Rents vary by property type, bedrooms and condition.
Are there schools in Diddillibah?
Yes — 5 schools are listed within or near Diddillibah covering independent, government, catholic sectors. Nearest include: Montessori International College (Forest Glen) (3.1 km), Kuluin State School (3.4 km), Bli Bli State School (3.9 km). School data sourced from ACARA and state education departments.
What NBN technology is available in Diddillibah?
Diddillibah is predominantly served by Fibre to the Node (67.7% of premises). Coverage data is sourced from the NBN upgrade map aggregated from NBN Co address checks.
How safe is Diddillibah?
Across the surrounding area, 23,962 offences were recorded in the 12 months to APR26. The most common offence categories were theft (13,472), drug offences (2,615), violent (2,154). 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 Diddillibah?
In Diddillibah, mean daily temperatures range from 15.9°C to 25.5°C and annual rainfall is 1,031 mm measured at the Gold Coast Seaway weather station (82.4 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: