Costa Firma's 2026 population is now estimated at 251. In 2011, the population of Costa Firma was 148. Costa Firma has grown by 9 in the last year, which represents a 3.72% 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 .