Monaco-Ville's 2026 population is now estimated at 645. In 1975, the population of Monaco-Ville was 2,773. Monaco-Ville experienced a decrease of -33 residents over the past year, marking an annual decline of -4.87%. 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 .