Alma 63:4

And it came to pass that in the thirty and seventh year of the reign of the Judges, there was a large company of men, even to the amount of five thousand and four hundred men, with their wives and their children, departed out of the land of Zarahemla, into the land which was northward.

In the 37th year of the judges, a large group of men left the land of Zarahemla. There were 5,400 men with their wives and children. They went to the land in the north.

The next year, a large group—5,400 men plus their wives and children—left Zarahemla and headed north.