You may think Pont-sur-Sambre were a really litle town,but it is part of a bigger agglomeration all along the river Sambre and the main town of this agglomeration is Maubeuge. The agglomeration is called AGGLO. It has a part in Belgium with the town of Erquelinne All along the Sambre the agglo is about 30 km long and there is almost no country land betwwen the towns.
Without its belgian part the Agglo is the 58th agglomeration of France.
The Lille agglomeration is the biggest of the region with 1 015 744 inhabtatns
Then Douai-Lens is the 10th of France and the second of the Region with 509 093 inhabitants.