
Known the world over for impecable manners and social etiquette, yet at the same time home to a thriving sex industry, Japan is a country of stark contrasts. What goes on behind closed doors is seldom discussed in public and yet with risqué manga and adults-only bars and stores in plain view in most city areas, there are likely few urbanites who aren’t plainly aware that behind its deep bows, well-regimented table manners and ceremony surrounding even the seemingly trivial act of exchanging business cards, Japan has a naughty side.
In a recent survey carried out by Japanese condom manufacturer Sagami Condoms, however, 4,100 people from all over the country disclosed the intricate details of their sex lives, discussing everything from when they first started doing it to how often they have sex today and whether they’re completely satisfied in bed.
In the survey, Sagami asked participants aged 20-60 from all 47 of Japan’s prefectures a number of questions about their sex lives. With the answers collated, the company was left with an enormous pool of data to analyse, organize and summarise. We’ll touch on some of the juicier sets of data here, but of course there’s only one logical place to start:
- The first time

Sagami’s survey revealed that it’s none other than the feisty Okinawans who are, on average, the youngest when it comes to that magical/awkward/traumatising first time with a partner, with the average Okinawan being just 19.6 years old when they make their initial foray into the world of sex. Coming in a close second, however, was frosty Aomori Prefecture at the northernmost tip of the island of Honshu at 19.7 years. Temperate Kouchi Prefecture in Shikoku followed in third place with an average age of 19.8. At the opposite end of the spectrum, though far from being late starters, the guys and girls of Ibaraki Prefecture wait on average until they’re 21.1 years old to express their love physically. Wait, this is a survey about love, right!?
- Experience
But after that tentative start, just how much do the people of Japan like to play the field? Well, according the group surveyed, if you’re living down in Kouchi Prefecture you’ll have around 12 notches on your bedpost (providing you adhere to the traditional notching rules and not the newfangled ‘per occasion’ system…). Those feisty Okinawans also made an appearance in this category, coming in second with 10.2 partners on average, closely followed by the residents of Aichi Prefecture with an eyebrow-raising 10.1. Well, the prefecture’s name does include the kanji for love after all…
- Cheating
Look at you all, sitting up in your seats at the mention of scandal! Well, if this sort of thing turns you on, perhaps — according to this data, as my lawyer advises me to say — your chances of getting a little on the side are highest in Shimane Prefecture in the Chūgoku region of Japan’s main island, where a whopping 26.5% of those asked admitted to having cheated at least once. Shock horror, indeed! Toyama and Mie Prefectures needn’t look so pleased with themselves, either; they both clocked in on the cheat-o-meter at 26.2 and 25.6%, respectively. The people of Akita Prefecture in the northwest, meanwhile, showed that they can absolutely be trusted to remain faithful, with only 15.4% saying that they’d ever cheated. Who else wants to give Akita a hug all of a sudden?
- Frequency
Issues of fidelity and numbers of partners aside, what we’re sure most people want to know here is which prefecture is getting down to it the most. With the population of Japan steadily decreasing, which region should be commended for helping the country out? (Although, this being a survey conducted by a condom manufacturer, perhaps these aren’t really the people to call on for that particular job…) The people of Kyushu’s Saga Prefecture ranked in at number one, with respondents saying that they had sex 2.79 times each month. Fidelity-loving Akita also said that they had grown-up playtime 2.62 times in the same period, perhaps indicating that a regular sex life can have a positive effect on your relationship overall. For all their passion and bling, however, poor old Osaka came in dead last, with the Sagami’s results suggesting that they have sex just 1.52 times each month.
- A little ‘me’ time

Initially we thought we might see some data to suggest that those who aren’t having sex regularly are spending a little too much time alone in the garden shed with pictures of Jessica Rabbit, but the condom maker’s results would suggest the exact opposite. Slowly making a reputation for itself as one of the most passionate prefectures, Akita once again made an appearance in the top three, with its residents stating that they engaged in solo sessions on average 5.67 times per month. Toyama Prefecture on the west coast wasn’t far behind with 5.28 times, and cheeky Okinawa showed its face yet again to boast pleasing Percy or Penelope 4.80 times a month.
- Satisfaction

We’ve talked frequency, cheating and selfish love, but just where can we find Japan’s best lovers? Interestingly neither Japan’s most sexually active (Saga Prefecture) nor unfaithful (Shimane) prefectures ranked in the top three, with Kagoshima down in Kyushu taking the top spot for overall sex-life satisfaction with 55.8%. Number two was Yamanashi Prefecture with 55.7%, and in third place quiet little Fukui Prefecture (who masturbates the least in all of Japan, it should be noted), where 54.8% of those surveyed said that they were happy with their sex lives. Poor old Ehime Prefecture and Ibaraki, who statistically start late and have fewer partners, came in at the bottom end of the scale along with Tokyo’s neighbour Chiba Prefecture. Come on, guys, this simply will not do! We hope to see you move up at least 10 places next year.
There’s plenty more sexy data to be pored over at over on Sagami’s official survey website. But perhaps we should all just forget about the numbers and spend a little time with our loved ones, kissing, holding hands, and never, ever mentioning how many partners we had before them if we happen to come from Kouchi Prefecture…
Source: Sagami Condoms via IT Media
Images via Sagami Condoms




Japanese cheating survey finds high infidelity rate in Kyoto and one of Tokyo’s neighbors
Japanese condom maker creates CG video of two T. rexes humping 【Video】
Survey shows more Japanese married men, single Japanese women cheating on their romantic partners
Japanese survey reveals having a significant other slows your pace, makes you lazier
Japan releases results of its first national same-sex marriage survey
Silicone testicle covers banned from Japanese sauna following cups being left behind and on shelves
Japanese government planning higher ticket prices for foreign tourists at Tokyo National Museum
Starbucks Japan releases a new Cream Puff Frappuccino for a limited time
Romance an ancient Egyptian god in the newest bizarre dating sim for mobile
New survey reveals which Studio Ghibli heroine Japanese audiences relate to the most
A look back on 40 years of Japanese schools banning stuff
One Piece creator has hidden secret of anime treasure’s identity in chest at bottom of real-world ocean
Here are Japan’s most-sung karaoke songs in 2022 from karaoke system Joysound
How to tie a women’s summer kimono sash 【Video】
I can’t believe it’s not fish eggs? Taste-testing Japan’s imitation “almost ikura”【Photos】
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Japan’s cherry blossom season predicted to start earlier than we’d thought, especially in Tokyo
Is Tokyo Station’s startlingly expensive wagyu bento boxed lunch worth its high price?[Taste test]
Live-action One Piece’s Luffy teaches Sesame Street’s Elmo a Japanese word for friendship[Video]
Studio Ghibli now sells Ursula’s backpack from Kiki’s Delivery Service at its anime shop in Japan
Sakura Festival in Chiyoda mixes illuminations, boats, music, and Rilakkuma in the heart of Tokyo
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Japan’s newest Shinkansen has no seats…or passengers [Video]
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
How many married people with children in Japan admit to cheating on their spouse? Survey says…
Rub-a-dub-dub and relax in a tub: Survey reveals wintertime bathing habits across Japan
Survey reveals that Japanese women’s ideal husband is surprisingly ordinary
Survey results reveal average number of days people can bear to self-quarantine
Can you guess the most-consumed vegetable in Japan? This survey reveals the results
Survey says Japan is deeply dissatisfied in bedroom, prefers eating to getting it on
Data shows Fukui Prefecture may be the best place to live in Japan, but survey results differ
When do Japanese women have their first kiss? Survey finds gap between different parts of Japan