AbstractWhile emotional transmission is a well‐documented phenomenon, the contagion of happiness, specifically as a positive emotion, has received limited research attention. This study utilizes data from the 2015 Chinese General Social Survey (CGSS2015) to analyse the effects of happiness contagion among different individual groups in urban communities. Findings indicate that individuals with positive personalities and social attitudes are more susceptible to happiness contagion. Regarding personal and job attributes, the elderly, the highly educated, the married, or people who are religious, have high incomes, work in non‐state‐owned enterprises, or work flexibly tend to receive more happiness from their neighbours. Moreover, residents living in economically developed areas exhibit a greater receptivity to happiness contagion. The paper discusses policy implications of the results. Please refer to the Supplementary Material section to find this article's Community and Social Impact Statement.