Tomakomai is a city and port in Iburi Subprefecture, Hokkaido, Japan. It is the largest city in the Iburi Subprefecture, and the fourth largest city in Hokkaido. As of 31 July 2023, it had an estimated population of 167,372, with 83,836 households, and a population density of 298 persons per km²
Kitaibaraki is a city in Ibaraki Prefecture, Japan. As of 1 July 2020, the city had an estimated population of 41,750 in 17,034 households and a population density of 220 persons per km². The percentage of the population aged over 65 was 34.6%. The total area of the city is 186.80 square kilometres.
Kita Ibaraki-Shi (Ibaraki) website