Where the single people are
For each of Japan's 1,888 municipalities, how many unmarried people live there, and whether the balance tips towards men or women. Built from the 2020 census, by age band. No account and no app. What you do with it is yours to decide.
🗺 Open the map of singles and children
The older the band, the more men are left over
Nationally, for every single woman there are this many single men. The gap widens with every decade.
Municipality by municipality the spread is wider still: the median runs 1.17× in the twenties and 1.92× in the fifties. In places under 20,000 people it reaches 1.59× even in the thirties.
The head counts differ by orders of magnitude
A favourable ratio means nothing where almost nobody lives, so the map also shows the plain count. For unmarried men in their thirties:
Two cities can tip opposite ways
City size does not decide the direction. Factory towns and central city wards sit at opposite ends.
Three ways to read it
Numbers
How many unmarried people of the other side live there. This is the default, because a count is what you actually act on.
Ratio
How that count compares with your own side of the same age. The middle of the colour bar is the national figure, so only places above the national average turn warm.
Children
The share of the population under 15. Where children are few, support for families is sometimes at its strongest.
What this map does not do
It does not introduce anyone
There are no profiles and no accounts here. It is a picture of counts, nothing more.
It is not today
These are figures from 1 October 2020. They show a tendency, not who lives there now.
It stops at the municipality
It does not go down to the neighbourhood. Painting single women block by block would make a map for targeting people, and that is not what this is.
It leaves out the unreported
Marital status was not reported for about 4% of people in 2020. Those people are excluded from the denominators rather than counted as married.
Open the map
Pick the side you are looking from and an age band, then move around. The panel lists the top five in whatever the screen is showing.
Source
e-Stat, 2020 Population Census of Japan, Basic Complete Tabulation, tables 4-3 and 2-7 (1 October 2020). Municipal boundaries from the Ministry of Land, Infrastructure, Transport and Tourism (National Land Numerical Information, 1 January 2021), simplified. Aggregate figures, not an evaluation of any area or person.