Monte-Carlo's 2026 population is now estimated at 28,642. In 1975, the population of Monte-Carlo was 2,622. Monte-Carlo has grown by 1,397 in the last year, which represents a 5.13% annual change. These population values and projections come from IMSEE 2008 census report district historical series (direct), Monaco district census series 1975-2016 via CityPopulation official attribution and World Population Review Internal Projections .