At the height of his prosperity during the Battle of Okehazama, Yoshimoto's territory extended over Suruga, Totomi and Mikawa provinces with a total production of 690,000 koku (according to the Taiko Kenchi [Hideyoshi TOYOTOMI's nationwide land survey]).
桶狭間合戦当時の最盛期の今川義元の領国は、駿河国、遠江国、三河国の3カ国の69万石（太閤検地）である。