Did the north or south have a bigger population in 1860?

The North had a higher population. In the South a lot of the people lived on huge plantations, they were like a city in itself. Most people in the South lived very far apart from each other.

The North, on the other hand, was densely populated with huge cities. Unlike the South, they didn't rely on agriculture, but industrialism. Which is a huge advantage that they had during the Civil War.