How many years of comparable data are there for Iran, Islamic Republic of and Viet Nam?

10 years are reported by both, from 1998 to 2018.

Where does this data come from?

World Inequality Database (WID.world) (2026) – with major processing by Our World in Data, published as Income share of the richest 1% (before tax). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Viet Nam: Income share of the richest 1% (before tax)

Iran, Islamic Republic of

15.7%

in 2022

Viet Nam

15.7%

in 2018

Iran, Islamic Republic of rank

49th

Viet Nam rank

47th

Income share of the richest 1% (before tax) over time

Iran, Islamic Republic of
Viet Nam

How they compare

Viet Nam currently reports 15.7% against 15.7% in Iran, Islamic Republic of, a difference of 0.0%.

The two have swapped places 4 times across 10 shared years of data; in 1998 it was Iran, Islamic Republic of ahead.

Iran, Islamic Republic of ranks 49th and Viet Nam ranks 47th of 113 countries.

Across the 3 decades both report, Iran, Islamic Republic of averaged higher in 2 and Viet Nam in 1.

Head to head by decade

Decade	Iran, Islamic Republic of	Viet Nam	Difference	Ahead
1990s	19.2%	16.8%	2.5%	Iran, Islamic Republic of
2000s	18.7%	16.4%	2.3%	Iran, Islamic Republic of
2010s	16.6%	16.9%	0.4%	Viet Nam

Averages of every year both report within each decade.

Frequently asked questions

Which has higher income share of the richest 1% (before tax), Iran, Islamic Republic of or Viet Nam?: Viet Nam, at 15.7% against 15.7% in Iran, Islamic Republic of as of 2018.
What is the difference in income share of the richest 1% (before tax) between Iran, Islamic Republic of and Viet Nam?: 0.0%, with Viet Nam ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Viet Nam?: 10 years are reported by both, from 1998 to 2018.
How do Iran, Islamic Republic of and Viet Nam rank globally for income share of the richest 1% (before tax)?: Iran, Islamic Republic of ranks 49th and Viet Nam ranks 47th of 113 countries.
Where does this data come from?: World Inequality Database (WID.world) (2026) – with major processing by Our World in Data, published as Income share of the richest 1% (before tax). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Viet Nam: Income share of the richest 1% (before tax). Statizoid, drawing on World Inequality Database (WID.world) (2026) – with major processing by Our World in Data. Retrieved 08 September 2026, from https://economy.statizoid.com/compare/income-share-top-1-before-tax-wid-extrapolations/iran-islamic-rep/viet-nam/

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<a href="https://economy.statizoid.com/compare/income-share-top-1-before-tax-wid-extrapolations/iran-islamic-rep/viet-nam/">Iran, Islamic Republic of vs Viet Nam: Income share of the richest 1% (before tax)</a> — Statizoid

About this data

Indicator: Income share of the richest 1% (before tax)
Unit: %
Source: World Inequality Database (WID.world) (2026) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 113 places, 3,075 data points, 1820–2024
Last refreshed: 28 August 2026

Share of income received by the richest 1% of the population. Income here is measured before taxes and benefits.