Net overseas and interstate migration as a share of population change across Australian states and territories; %, 2025.
Australian states and territories are ranked by the share of 2025 population change attributable to net overseas and interstate migration. The numerator combines the two net migration components and the denominator is each jurisdiction’s total population change. Tasmania ranks first at 89.8%, followed by South Australia at 85.9%. The Australian Capital Territory ranks lowest at 53.0%, reflecting a larger contribution from natural population increase.
| Rank | Entry | Value | Period |
|---|---|---|---|
| 1 | Tasmania | 89.8% | year ended 31 December 2025 |
| 2 | South Australia | 85.9% | year ended 31 December 2025 |
| 3 | Western Australia | 77.7% | year ended 31 December 2025 |
| 4 | Queensland | 77.2% | year ended 31 December 2025 |
| 5 | Victoria | 71.9% | year ended 31 December 2025 |
| 6 | New South Wales | 66.4% | year ended 31 December 2025 |
| 7 | Northern Territory | 55.4% | year ended 31 December 2025 |
| 8 | Australian Capital Territory | 53.0% | year ended 31 December 2025 |
Source 1: National, state and territory population, December 2025
Publisher: Australian Bureau of Statistics
Dataset/table: Population change by state and territory
Units: people and percent
Date checked: 2026-07-15
Evidence: Supports population change, net overseas migration and net interstate migration used to calculate migration dependence.
The measure is a contribution ratio rather than a share of one national total. Ratios can exceed 100% or fall below zero when migration and natural change offset each other, although that does not occur in this period.
For each jurisdiction, net overseas migration and net interstate migration are added and divided by total population change. The result is multiplied by 100 and ranked from highest to lowest.
Every row uses the same ABS population accounting release, year-end period and component definitions.
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