Arrondissement of Cambrai, (subprefecture: Cambrai) with 7 cantons and 116 communes. The population of the arrondissement was 162,162 in 1990, and was 158,845 in 1999, a decrease of 2.05%.
Arrondissement of Douai, (subprefecture: Douai) with 7 cantons and 64 communes. The population of the arrondissement was 247,015 in 1990, and was 246,987 in 1999, a decrease of 0.01%.
Arrondissement of Dunkirk, (subprefecture: Dunkerque) with 16 cantons and 115 communes. The population of the arrondissement was 375,073 in 1990, and was 379,702 in 1999, an increase of 1.23%.
Arrondissement of Lille, (prefecture of the Nord department: Lille) with 28 cantons and 124 communes. The population of the arrondissement was 1,152,883 in 1990, and was 1,182,026 in 1999, an increase of 2.53%.
Arrondissement of Valenciennes, (subprefecture: Valenciennes) with 9 cantons and 82 communes. The population of the arrondissement was 349,262 in 1990, and was 348,994 in 1999, a decrease of 0.08%.