Tomiya is a city situated in the central region of Miyagi Prefecture, Japan. It serves as a residential and administrative area within the prefecture's inland geography.
As of May 31, 2020, the city had an estimated population of 52,433 residents living in 19,535 households. The total land area of Tomiya is 49.18 square kilometres (18.99 sq mi), resulting in a population density of approximately 1,100 persons per square kilometre.