Population
−19.6% since 2016.
Castra, TAS
Castra had a population of 41 at the 2021 Census (−19.6% since 2016). Median age 49.0. Median weekly household income $1,024. Source: ABS Census 2021, via Censible. Census 2026 data arrives June 2027.
Castra at a glance
What the 2021 Census says, compared with Tasmania.
Between the 2016 and 2021 censuses, Castra's population shrank by 19.6% to 41, slower than Tasmania as a whole (+9.3%). With a median age of 49.0, it is older than the TAS average (41.8). Children under 10 make up 0.0% of residents, and people aged 70 and over 7.3%.
0.0% of households rent, a smaller share than the TAS average of 26.9%. 47.4% own their home outright. Almost every home is a house; flats and apartments are 0.0% of homes. The 2021 Census counted 19 households.
The median household earns $1,024 a week, below the TAS average of $1,358.
11.9% of residents were born overseas, fewer than the TAS average of 16.3%. 0.0% use a language other than English at home. 82.9% report no religion, higher than the TAS average (53.9%).
Key figures
2021 Census, Castra beside TAS and Australia.
| Measure | Castra | TAS | Australia |
|---|---|---|---|
| Population | 41 | 557,570 | 25,422,828 |
| Growth since 2016 | −19.6% | +9.3% | +8.6% |
| Median age | 49.0 | 41.8 | 38.2 |
| Households | 19 | 218,410 | 9,275,123 |
| Flats and apartments | 0.0% | 5.3% | 14.3% |
| Renting | 0.0% | 26.9% | 31.1% |
| Owned outright | 47.4% | 37.7% | 31.4% |
| Median household income a week | $1,024 | $1,358 | $1,747 |
| Median rent a week | – | $291 | $376 |
| Median mortgage repayment a month | $1,558 | $1,328 | $1,866 |
| Born overseas | 11.9% | 16.3% | 29.3% |
| Other language at home | 0.0% | 9.2% | 23.6% |
| No religion | 82.9% | 53.9% | 41.9% |
Source: ABS Census 2021, via Censible. How the figures are built
Population and age
Each census since 2011, and the age profile in 2021.
Age
Median age 49.0, against 41.8 for Tasmania.
Source: ABS Census 2021, via Censible. How the figures are built
Cultural background
The largest groups in Castra at the 2021 Census.
Ancestry
Languages at home
Country of birth
Source: ABS Census 2021, via Censible. How the figures are built
Around Castra
The places it belongs to, sits beside and contains.
Part of
Nearby
Explore Castra in Censible
Every census figure for Castra, mapped and compared with any other place. A free account takes a minute.