Arrondissements of the Mayenne department

The 3 arrondissements of the Mayenne department are:

1. Arrondissement of Château-Gontier, (subprefecture: Château-Gontier) with 71 communes. The population of the arrondissement was 56,806 in 1990, and was 58,152 in 1999, an increase of 2.4%.
2. Arrondissement of Laval, (prefecture of the Mayenne department: Laval) with 88 communes. The population of the arrondissement was 134,173 in 1990, and was 140,207 in 1999, an increase of 4.5%.
3. Arrondissement of Mayenne, (subprefecture: Mayenne) with 102 communes. The population of the arrondissement was 87,058 in 1990, and was 86,979 in 1999, a decrease of 0.1%.