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Yokkaichi, 
Japan
332,173 people lived in Yokkaichi in 2025. It is the 1729th largest of the world's 12,138 cities, and the 26th largest in Japan.
Like every city on this site, Yokkaichi is counted as a built-up area seen from above rather than as a city government's territory. Why that changes the number.
Verified 2026-09-30 · 73 canaries
People · every five years · 1975 to 2050
How Yokkaichi grew
Where Yokkaichi had 10 people in 1975, it had 8.1 in 2025, fewer than it started with.
On the UN's projection it will have 265,824 people in 2050.
projected (after 2025) · how sure the UN is: high moderate low
How to read this: one column every five years, 1975 to 2050; its height is the number of people. Hatched columns are the UN's projection. The thin strip beneath says how sure the UN is of each figure: the stronger the colour, the surer. A blank means the place was not on the UN's list of cities that year.
People · your family's years · 1975 to 2050
Yokkaichi through your family’s years
Put in the years your family were born. You’ll see how many people lived in Yokkaichi in each of those years, and when each of them turned 30.
Japan · every city · 2025
Where it is
How to read this: Japan and its 137 cities in 2025, each a dot whose area is its number of people (the largest is Tokyo). Yokkaichi is ringed, in colour; the other cities are grey. Neighbouring countries are outlines.
Area and built-up land · km²
How much land it covers
In 2025, Yokkaichi covered 158 km², and buildings, roads and other built-up land covered 45 km² of it. That is 135 m² of built-up land for each person, about a square 12 by 12 metres. Since 1975, its built-up land has grown by 29%, and its people have fallen by 19%.
How to read this: the outer pale square stands for all the land the city covers, and the solid square inside it for the part with buildings, roads and the like on it. All three squares share a scale, so you can compare them by eye. A hatched one is a year the UN has projected.
Of every 100 people in Japan
Its share of Japan
Of every 1,000 people in Japan in 2025, 3 lived in Yokkaichi, which is 332,173 people.
How to read this: shrink Japan to 1,000 people and this is what you get. The coloured squares are the ones who would live in Yokkaichi; the grey ones are everybody else, in other cities, in towns and out in the country.
Ranked by people · 2025
Cities of a similar size
In the world, 2025
- 1725 Rio Branco Brazil332,810
- 1726 Sasaram India332,715
- 1727 Hui'an China332,559
- 1728 Stoke-on-Trent United Kingdom332,542
- 1729 Yokkaichi332,173
- 1730 Chandausi India331,969
- 1731 Cap-Haitien Haiti331,899
- 1732 Liaoyuan China331,469
- 1733 Nuevo Laredo Mexico331,195
In Japan, 2025
- 1533 Oita372,190
- 1605 Fukuyama355,352
- 1622 Utsunomiya352,816
- 1678 Takamatsu340,478
- 1729 Yokkaichi332,173
- 1748 Shizuoka328,613
- 1864 Nagasaki308,986
- 1930 Asahikawa298,481
- 2061 Hamamatsu282,084
How to read this: the figure in front of a name is where that city stands among the 12,138 cities the UN counted in 2025, and each bar is its people, on one scale per list. Numbers are missing where a city has fewer than 300,000 people and so has no page of its own.
Apparatus
Sources and method
The figures for Yokkaichi are the UN's own, at five-year steps: an estimate for each of 1975 to 2025, then projection to 2050. Projected years are drawn hatched, and the UN publishes no range of uncertainty for a city. What a city means here, how the UN measures one, and why that number can differ from the one Yokkaichi publishes about itself: how the figures here are put together.
Sources: UN WUP 2025 · Natural Earth · flag-icons. Every source, its licence and how to cite it →
Verified 2026-09-30 · 73 canaries