about 33 million (2025)
About how many people live in the Greater Tokyo Area?
That makes Greater Tokyo the third-most populous metropolitan area in the world.
Source: Wikipedia, Tokyo (2025) en.wikipedia.org
Places · Guess the stat
How well do you know Tokyo?
Guess the real numbers behind the world's great megacity, see how everyone else guessed, and get the source.
Guess the statOne tap · see how everyone guessed
How tall is Tokyo Skytree, the world's tallest tower?
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Today's round
- 4 stats to guess
- 1 opinion poll
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Tokyo by the numbers
Real figures with their sources. All Tokyo facts →
21.2%
What share of Japan's nominal GDP did Tokyo account for in 2022?
The wider Greater Tokyo Area produced about US$2.08 trillion in GDP that year.
Source: Wikipedia, Tokyo (2022) en.wikipedia.org
1,850 km (1,150 mi)
Tokyo's Ogasawara Islands stretch as far as how far from central Tokyo?
Even these distant islands are administered as part of the Tokyo Metropolis.
Source: Wikipedia, Tokyo en.wikipedia.org
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Questions
How does TokyoSurvey.com work?
Each question asks you to guess a real number about Tokyo. After you answer you see how everyone else guessed, then the real figure and where it comes from.
How is the daily round scored?
Four stats and one opinion poll. A correct guess earns 100 points plus up to 50 for speed, with a combo bonus for answers in a row. The range next to the right answer earns 40. Opinion polls earn 25 for having your say, and nailing every stat adds 150.
Where do the numbers come from?
Every stat links to its source, such as government statistics agencies, research organizations and industry groups. Figures are checked against the source before they go live.
Is it free?
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