According to Benin's 2013 census, the total population of the department was 745,328, with 348,574 males and 396,754 females. The proportion of women was 53.20%. The total rural population was 72.20%, while the urban population was 27.80%. The proportion of women of childbearing age (15 to 49 years old) was 24.30%. The foreign population was 2,167, representing 0.30% of the total population in the department. The
labour force participation rate among foreigners aged 15–64 years was 43.00%. The proportion of women among the foreign population constituted 62.50%. The number of households in the department was 140,444 and the average household size was 5.3. The intercensal growth rate of the population was 3.20%. Among women, the average age at first marriage was 21.4 and the average age at maternity was 29. The synthetic index of fertility of women was 5.4. The average number of families in a house was 1.3 and the average number of persons per room was 2.0. The total labour force in the department was 208,974, of which 52.60% were women. The proportion of households with no level of education was 68.60% and the proportion of households with children attending school was 60.20%. The crude birth rate was 40.1, the general rate of fertility was 165.30 and the gross reproduction rate was 2.70. The main ethnolinguistic groups in the department are the
Fon,
Aja,
Mina,
Kotafon,
Ayizo, and
Saxwe. ==Administrative divisions==