This Economic Insights article examines trends in the citizenship rate (the percent of immigrants who become Canadian citizens) among recent immigrants who arrived in Canada five to nine years before a given census. The citizenship rate among recent immigrants aged 18 and over peaked in 1996 and declined continuously to 2016. Most of this decline occurred after 2006. The citizenship rate declined most among immigrants with low family income, poor official language skills, and lower levels of education. There was also significant variation in the decline among immigrants from different source regions, with the decline largest among Chinese immigrants.