Gillen, NT
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Around the national middle
Gillen is more socio-economically advantaged than about 51% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 989, 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.
Gillen at a glance
- Population (2021)
- 4,466
- Median age
- 33
- Median weekly household income
- $2,176
- SEIFA score
- 989
- Coordinates
- -23.7108, 133.8659
Gillen demographics (2021 Census)
The figures below profile Gillen 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 young adults (25–44) at 35%, 41% of homes are rented, and 31% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 1,016 | 23% |
| Youth (15–24) | 533 | 12% |
| Young adults (25–44) | 1,574 | 35% |
| Mid-life (45–64) | 997 | 22% |
| Seniors (65+) | 347 | 8% |
Share of the 4,467 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 215 | 14% |
| Owned with a mortgage | 628 | 42% |
| Rented | 612 | 41% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 1,037 | 70% |
| Townhouses & semis | 405 | 27% |
| Flats & apartments | 36 | 2% |
Tenure and dwelling shares are of the roughly 1,484 occupied private dwellings in Gillen.
- Median weekly rent
- $400
- Median monthly mortgage
- $1,733
- Average household size
- 2.7 people
- Median weekly family income
- $2,391
- Median weekly personal income
- $1,103
Community and culture
- Born overseas
- 1,272 (31%)
- Speaks a language other than English at home
- 1,203 (29%)
- Aboriginal and/or Torres Strait Islander
- 850 (19%)
Work and education
- Completed Year 12
- 1,869 (57%)
- Labour-force participation
- 72.2%
- Unemployment rate
- 3.8%
- Employed full-time
- 1,709
- Employed part-time
- 568
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 Gillen
Based on 2014–2023 records, the warmest month in Gillen is January (average daytime high around 35°C) and the coolest is June (around 19.5°C). The area receives roughly 251 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 35°C | 22.9°C | 78 mm |
| Feb | 35.1°C | 22°C | 16 mm |
| Mar | 33.8°C | 20.6°C | 21 mm |
| Apr | 28.9°C | 15.6°C | 6 mm |
| May | 23.1°C | 10.4°C | 12 mm |
| Jun | 19.5°C | 7°C | 10 mm |
| Jul | 20.5°C | 6.8°C | 4 mm |
| Aug | 22.8°C | 8.4°C | 5 mm |
| Sep | 27.4°C | 12.5°C | 11 mm |
| Oct | 31.8°C | 16.9°C | 10 mm |
| Nov | 33.6°C | 19.7°C | 32 mm |
| Dec | 35.3°C | 22.2°C | 46 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Gillen
Where is Gillen?
Gillen is a suburb of Northern Territory, Australia.
What is the population of Gillen?
At the 2021 Census, Gillen had a population of about 4,466.
Is Gillen an advantaged area?
Gillen has an ABS SEIFA score of 989, 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 Gillen?
Gillen has average daytime highs of about 28.9°C and overnight lows of about 15.4°C, with roughly 251 mm of rain across the year (based on 2014–2023 climate normals).
How big is Gillen?
Gillen is one of the most populous suburbs in Northern Territory — the 4th-largest by usual resident population at the 2021 Census (about 4,466 usual residents).
Where Gillen ranks
Gillen appears in these data-driven guides — each a transparent sort on a single ABS figure shown on this page.
Nearby suburbs in Northern Territory
More suburb guides in Northern Territory
Other hand-written, cited guides — browse all guides.