The Phenomenon of Aoshima
Located in the Ehime Prefecture, Aoshima has gained international notoriety as one of Japan's 'Cat Islands.' According to census data provided by the Ozu City government, the island's human population has dwindled to fewer than 10 permanent residents, while the cat population fluctuates between 100 and 150. Originally settled in the 1940s to support a thriving sardine fishery, the cats were introduced by fishermen to combat a mouse infestation that was damaging their boats and gear.
History vs. Legend
| Site | Historical Fact | Local Legend |
|---|---|---|
| Aoshima Village | Cats introduced to control rodent population in 1945. | Cats are reincarnated spirits of lost sailors. |
| The Abandoned School | Closed in the late 1980s due to school consolidation. | The school remains a sanctuary for 'cat kings'. |
Essential Travel Information
- Access: The island is reachable via a twice-daily ferry from Nagahama Port. Check the Ozu City Official Website for current schedules.
- Facilities: There are no shops, restaurants, or vending machines on the island. Travelers must bring all food, water, and waste bags with them.
- Respect: Visitors are reminded that this is a residential area, not a zoo. Do not enter private homes or disturb the residents.
Pros and Cons
- Pros: Unique cultural experience, quiet atmosphere, high density of friendly cats.
- Cons: Extremely limited infrastructure, weather-dependent transport, potential for overcrowding at the pier.
Article Methodology & Sources
This guide was compiled using official data from the Ozu City municipal portal and regional tourism updates. Information regarding the history of the island's feline population is based on documented reports of the 1940s fishing industry in Ehime Prefecture.
Editorial Methodology & Trust
Last Updated: July 2, 2026
Every Shaivio guide is created through editorial research using publicly available information from official tourism authorities, transportation providers, government resources, and other reliable references where applicable. Our editors review and update content regularly to improve accuracy and usefulness. Shaivio does not accept paid placements or sponsored rankings in editorial content. Because travel information can change, we recommend verifying critical details with the relevant official source before traveling.
