<p>This study aimed to examine whether regional differences existed in the correlation between resilience and age in Japan, explore the associated regional characteristics, and provide a descriptive overview of nationwide variation in the age–resilience association. Data were obtained from the Human Information Database FY22 (<i>N</i> = 52,415; aged 15–93 years) and combined with prefecture-level demographics, economy, culture, sports, welfare, and crime indicators. Partial correlation coefficients between resilience scores and age were calculated for each prefecture, controlled for gender and years of residence. Partial <i>r</i> values range from 0.02 to 0.27, indicating that the age–resilience association varied from negligible to modest across prefectures; some prefectures exhibited no association. Further analyses revealed that rate of sports participation was the only regional characteristic significantly associated with the age-resilience correlation (<i>r</i> = .31, <i>p</i> &lt; .05), indicating a small-to-moderate regional association. Regions with higher sports participation demonstrated stronger age–resilience associations. Thus, regional social participation environments, particularly sports participation, may inform regionally tailored public health strategies to support resilience development across the life span.</p>