Raccoon Infestation Drives Agricultural Losses and Urban Nuisances Across Japan
Raccoon-related damage in Japan has more than doubled in a decade, costing nearly 700 million yen annually and increasingly affecting city residents.
Japan’s raccoon problem is escalating, with agricultural losses approaching 700 million yen each year as the invasive mammals spread into both rural fields and urban neighborhoods. Government data show crop damage of 693 million yen for the fiscal year starting April 2024, more than double the figure recorded ten years prior. In Osaka, resident reports of raccoons stealing goldfish and entering attics climbed from 161 complaints in fiscal 2023 to 397 in fiscal 2025, prompting the prefectural government to label the animals a growing urban nuisance.
Osaka Prefecture recorded 84.06 million yen in raccoon-related crop damage in fiscal 2024, representing over 40 percent of all wildlife-related agricultural loss in the area. Hokkaido’s raccoon presence now covers nearly the entire prefecture, with fiscal 2024 damages exceeding 220 million yen, the highest on record. Both regions have launched expanded control programs, authorising eradication actions under the Invasive Alien Species Act and urging residents not to feed the animals. Experts stress that trapping must continue year-round to curb the rapidly expanding population.
Why it matters
Rising raccoon damage threatens Japan’s agriculture and urban quality of life, demanding costly control measures.
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