Which prefecture is the largest in Japan?

Hokkaido is the largest prefecture in Japan, covering a vast area of approximately 83,453 square kilometers. This northernmost island is known for its diverse landscapes, including mountains, forests, and coastal regions, which contribute to its substantial size compared to other prefectures in Japan. The considerable land area of Hokkaido accommodates a variety of natural resources, agricultural activities, and unique ecosystems.

In contrast, while prefectures like Fukushima, Iwate, and Niigata are notable in their own rights, they do not match Hokkaido’s expansive geographic scale. For example, Iwate is the largest in terms of land area among the three but still falls short of Hokkaido's overall size and significance in the context of Japan’s geography. Thus, Hokkaido's status as the largest prefecture is well-supported by its area and geographical importance.