Two studies set out to provide information regarding social environment contexts of trait emotional intelligence. In an initial exploratory study, participants with higher emotional intelligence were associated with close others of high emotional intelligence. A second longitudinal study examined the effect of social environments comprising higher or lower emotional intelligence on changes in emotional intelligence of residents in these environments. This study assessed the emotional intelligence and subjective well-being of residents of colleges at the start of a semester and again three months later. A higher composite college residence emotional intelligence index predicted an increase in participants' emotional intelligence and positive affect. These effects were especially strong for first-semester residents. The results offer new information regarding social environment contexts of trait emotional intelligence and extend findings regarding contagion of emotion and transmission of individual differences in complex emotion processing.