There has been a large immigration to the [[United States]] particularly to [[southeast Michigan]].<ref>{{Catholic-hierarchy|diocese|ddech|Eparchy of Saint Thomas the Apostle of Detroit (Chaldean)|21 January 2015}}</ref> Although the largest population resides in southeast Michigan, there are populations in parts of [[California]] and [[Arizona]] as well. [[Canada]] in recent years has shown growing communities in both eastern provinces, such as [[Ontario]], and in western Canada, such as [[Saskatchewan]].
In 2008, Mar Bawai Soro of the [[Assyrian Church of the East]] and 1,000 Chaldean families were received into full communion with the Chaldean Catholic Church from the Chaldean Church of the East.<ref name="Assyrian Bishop Mar Bawai Soto explains his journey into communion with the Catholic Church" >{{cite web
|url= http://www.kaldaya.net/2008/DailyNews/06/June06_08_E1_MARBAWAI.html
|title=Assyrian Bishop Mar Bawai Soto explains his journey into communion with the Catholic Church