In 2018, records show that Tui is the most densely populated municipality in the comarca (a traditional region) O Baixo Mio.
O Baixo Mino (English: Lower Mino, Spanish: Bajo Mino, Portuguese: Baixo Minho) is a comarca in the Galician province of Pontevedra. The comarca comprises the following five municipalities: Tui Tomino O Rosal Oia A Guarda 16,902 13,464 6,249 3,018 10,013 
It is situated in the comarca of O Baixo Mino. 16,902 Tomino O Rosal Oia A Guarda 10,013 3,018 6,249 13,464 
