Abstract: In Japan, the raccoon (Procyon lotor) is an invasive alien species that causes ecological and agricultural damage nationwide. Trapping is typically conducted to limit agricultural damage, even when performed on the basis of the Invasive Alien Species Act. Local government officials are expected to play leading roles in local trapping efforts; however, few municipal initiatives have reduced raccoon populations to adequately low densities. This study examined the enhanced countermeasures undertaken by a municipality in Japan and their efficacy in reducing the local raccoon population. The study area was Shintotsukawa in Hokkaido, Japan, where enhanced raccoon capture measures were implemented for 3 years beginning in fiscal year 2019. We compiled municipal data on the trapping efforts conducted, numbers of raccoons captured, and sex of individual raccoons. Both the trapping efforts and the number of captures increased after fiscal year 2019; the raccoon population density index decreased each year, with an estimated population of 0.840 raccoons/km² in fiscal year 2021. To enhance capture measures, three activities were undertaken: improvements to the capture program such as the introduction of capture grants and increasing the number of box traps available for rent, raccoon distribution surveys and capture support by town officials, and public awareness campaigns. Overall, the number of box trap applications increased due to the availability of rental box traps and capture grants, which enhanced trapping efforts. Although no numerical evidence could be obtained, the public awareness campaigns likely also supported the enhancement of trapping efforts. These results imply that improving municipal resources (e.g., workforce, goods, money, and information) can greatly promote the control of raccoon populations. Capture as a means of preventing agricultural damage represents only one measure employed to combat invasive alien species. However, as shown in this case study, enhancing the resources available to local authorities can stimulate local trapping activities and assist in eradication efforts. Sharing the outcomes of such cases will encourage more local authorities to improve capture programs according to their unique situations.