This study determined whether there are statistically significant geographical clusters of suicide & undetermined deaths among those aged 15-44 years in Scotland, & whether these persist through time. Deaths for three periods – 1980-1982, 1990-1992, & 1999-2001 – were aggregated into 10,058 small areas for Scotland. Tests for significant geographical clustering of suicide were carried out for each period separately. A significant geographical cluster of suicide among young adults was identified in east Glasgow in all three time periods. All three clusters could be explained by the concentration of socioeconomic deprivation in this part of Scotland. (37 refs.)