Mudan District is an urban district of Heze, Shandong province.

It is the seat of Heze's prefectural government and center of its built-up or metro area, bordering Henan province to the northwest across the Yellow River.

Southwest Mudan District was the site of the ancient and medieval town of Yuanqu, which was the seat of an eponymous county.

As 2012, this County is divided to 10 subdistricts, 12 towns and 2 townships.

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