Neufmanil is a commune in the Ardennes department in the Grand Est region in Northern France. In 2019, it had a population of 1,006. Neuf…Neufmanil is a commune in the Ardennes department in the Grand Est region in Northern France. In 2019, it had a population of 1,006. Neufmanil is a commune in the Ardennes department located 7 km northeast of Charleville-Mézières and 7 km from the Belgian border. It is crossed by the Goutelle River.