San Mateo's 2026 population is now estimated at 308. In 2011, the population of San Mateo was 164. San Mateo has grown by 12 in the last year, which represents a 4.05% annual change. These population values and projections come from CBS Curaçao Census 2011 neighbourhood population table G-4, CBS Curaçao Census 2023 neighbourhood population table G-4 and World Population Review Internal Projections .