Today's prefectures were formed by integrating the prefectures at the time of the Haihan-chiken, but in the cases of large scale domains which had social status of landed daimyo, their territories are rarely identical with those of today's prefectures.
現在の県は廃藩置県時の諸県を統廃合して生まれたものだが、国主の格式を持っていた大藩の場合はかつての藩の領域と現在の県の領域がほぼ一致する場合がごく稀にある。