Australia vs Romania: Historical population data

Australia
27.61 million Persons
in 2025
Romania
19.02 million Persons
in 2025
Australia rank
20th
Romania rank
22nd

Historical population data over time

  • Australia
  • Romania
10.0M15.0M20.0M25.0M30.0M195019872025

How they compare

Australia currently reports 27.61 million Persons against 19.02 million Persons in Romania, a difference of 8.59 million Persons.

That makes Australia's figure about 1.5 times Romania's.

The two have swapped places 1 time across 76 shared years of data; in 1950 it was Romania ahead.

Australia ranks 20th and Romania ranks 22nd of 43 countries.

Across the 8 decades both report, Australia averaged higher in 2 and Romania in 6.

Head to head by decade

Decade Australia Romania Difference Ahead
1950s 9.12 million Persons 17.35 million Persons 8.23 million Persons Romania
1960s 11.25 million Persons 18.88 million Persons 7.63 million Persons Romania
1970s 13.71 million Persons 21.19 million Persons 7.48 million Persons Romania
1980s 15.72 million Persons 22.70 million Persons 6.98 million Persons Romania
1990s 17.93 million Persons 22.73 million Persons 4.80 million Persons Romania
2000s 20.18 million Persons 21.36 million Persons 1.17 million Persons Romania
2010s 23.66 million Persons 19.84 million Persons 3.82 million Persons Australia
2020s 26.47 million Persons 19.11 million Persons 7.36 million Persons Australia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher historical population data, Australia or Romania?
Australia, at 27.61 million Persons against 19.02 million Persons in Romania as of 2025.
What is the difference in historical population data between Australia and Romania?
8.59 million Persons, with Australia ahead.
How many years of comparable data are there for Australia and Romania?
76 years are reported by both, from 1950 to 2025.
How do Australia and Romania rank globally for historical population data?
Australia ranks 20th and Romania ranks 22nd of 43 countries.
Where does this data come from?
Organisation for Economic Co-operation and Development, published as Historical population data. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Australia vs Romania: Historical population data. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 20 August 2026, from https://population.statizoid.com/compare/historical-population-data/australia/romania/

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About this data

Indicator
Historical population data
Unit
Persons
Source
Organisation for Economic Co-operation and Development
Licence
OECD Terms and Conditions (attribution required)
Coverage
56 places, 4,256 data points, 1950–2025
Last refreshed

This dataset presents annual population data from 1961 by sex and five year age groups as well as the share of children, youth, the elderly, old-age and total dependency ratios. The data is available for all member countries as well as for the EU27 and G20 countries, Argentina, Brazil, China, India, Indonesia, Russia, Saudi Arabia, Singapore, South Africa and the World total. The data refer to mid-year estimates of the population. See country details in Historical population metadata.