Richelieu's 2026 population is now estimated at 10,031. In 2000, the population of Richelieu was 4,529. Richelieu has grown by 148 in the last year, which represents a 1.5% annual change. These population values and projections come from Estimated resident population by district, MCA and VCA (Mauritius official open data) and World Population Review Internal Projections .