Trongisvagur's 2026 population is now estimated at 523. In 1985, the population of Trongisvagur was 394. Trongisvagur experienced a decrease of -5 residents over the past year, marking an annual decline of -0.95%. These population values and projections come from Statistics Faroe Islands IB01030 population by village/city (January) and World Population Review Internal Projections .