Most of Chapter 2 of Ezra gives The Family Name and the number returning to Judah.
"Usually" in Semitic culture, only the males are recorded in the number given. So we can probably figure that the number can be then multiplied by the average family size of the day and come somewhat close to the exact number of people going back to Judah.
"Women and children" were never counted in amount of numbers, but just referenced to. Some women never marry, and some do not have children.
Most Jewish Males were expected to marry and have children. Even those in Religious service were expected to have one wife. But that usually is not and exact Science.
Lee Ostrander, Group Manager, The Minor Prophets