Tawas City is a city located in Iosco County, Michigan. Tawas City has a 2026 population of 1,837. It is also the county seat of Iosco County. Tawas City is currently declining at a rate of -0.11% annually but its population has increased by 0.55% since the most recent census, which recorded a population of 1,827 in 2020.