The City of Hamilton grew by almost 10,000 people - a record number for the last few decades and roughly triple the rate the city was averaging prior to 2016. The city also likely passed 600,000 now, probably in October or November as these estimates are as of July 1.
Interestingly, people are leaving for other provinces more than people from other provinces are moving here, but Hamilton remains a significant net positive place for people to move from elsewhere in the province. I suspect most of these people are coming from Toronto, just as I did several years ago. Immigration also remains a significant population driver, which we can see through things like the increasing south-asian population in Stoney Creek.