In June 1650, Mōri Narikata moved his seat to a place called Nogami, which he renamed "Tokuyama".

However, through the efforts of Mototsugu's son Mōri Mototaka and senior retainers, the domain was revived in 1719, albeit with a reduction in kokudaka to 30,000 koku.

In 1836, the eighth daimyō, Mōri Hiroshige, was raised in status to "castle-holding daimyō", and Tokuyama jin'ya was renamed "Tokuyama Castle" and the domain's kokudaka reverted to 40,000 koku.

At the time of the abolition of the han system in 1871, it was estimated that the domain's actual kokudaka was more than 69,000 koku.

As with most domains in the han system, Tokuyama Domain consisted of several discontinuous territories calculated to provide the assigned kokudaka, based on periodic cadastral surveys and projected agricultural yields, g.[4][5]