Diddillibah, QLD
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Around the national middle
Diddillibah is more socio-economically advantaged than about 51% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 990, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
Diddillibah at a glance
- Population (2021)
- 1,703
- Median age
- 46
- Median weekly household income
- $1,424
- SEIFA score
- 990
- Coordinates
- -26.6486, 153.0374
Diddillibah demographics (2021 Census)
The figures below profile Diddillibah using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is mid-life (45–64) at 33%, 13% of homes are rented, and 20% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 306 | 18% |
| Youth (15–24) | 191 | 11% |
| Young adults (25–44) | 314 | 18% |
| Mid-life (45–64) | 557 | 33% |
| Seniors (65+) | 339 | 20% |
Share of the 1,707 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 282 | 47% |
| Owned with a mortgage | 192 | 32% |
| Rented | 80 | 13% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 555 | 92% |
| Townhouses & semis | 4 | 1% |
| Flats & apartments | 4 | 1% |
Tenure and dwelling shares are of the roughly 604 occupied private dwellings in Diddillibah.
- Median weekly rent
- $330
- Median monthly mortgage
- $2,200
- Average household size
- 2.6 people
- Median weekly family income
- $2,080
- Median weekly personal income
- $683
Community and culture
- Born overseas
- 316 (20%)
- Speaks a language other than English at home
- 83 (5%)
- Aboriginal and/or Torres Strait Islander
- 25 (1%)
Work and education
- Completed Year 12
- 715 (54%)
- Labour-force participation
- 57%
- Unemployment rate
- 6.5%
- Employed full-time
- 403
- Employed part-time
- 272
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Weather and climate in Diddillibah
Based on 2014–2023 records, the warmest month in Diddillibah is January (average daytime high around 28.4°C) and the coolest is July (around 20.4°C). The area receives roughly 1234 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 28.4°C | 20.9°C | 136 mm |
| Feb | 28°C | 20.8°C | 187 mm |
| Mar | 27.4°C | 20.2°C | 171 mm |
| Apr | 24.9°C | 17.2°C | 83 mm |
| May | 22.4°C | 14.3°C | 104 mm |
| Jun | 20.5°C | 12.1°C | 62 mm |
| Jul | 20.4°C | 11.2°C | 53 mm |
| Aug | 21.8°C | 11.6°C | 42 mm |
| Sep | 23.8°C | 13.8°C | 47 mm |
| Oct | 25.6°C | 16.2°C | 118 mm |
| Nov | 27.4°C | 18.1°C | 94 mm |
| Dec | 28.2°C | 19.9°C | 137 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Diddillibah
Where is Diddillibah?
Diddillibah is a suburb of Queensland, Australia.
What is the population of Diddillibah?
At the 2021 Census, Diddillibah had a population of about 1,703.
Is Diddillibah an advantaged area?
Diddillibah has an ABS SEIFA score of 990, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 51 out of 100 — more socio-economically advantaged than about 51% of Australian suburbs.
What is the weather like in Diddillibah?
Diddillibah has average daytime highs of about 24.9°C and overnight lows of about 16.4°C, with roughly 1,234 mm of rain across the year (based on 2014–2023 climate normals).
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