Chengcheng County (Chinese: 澄城县; pinyin: Chéngchéng Xiàn) is a county under the administration of the prefecture-level city of Weinan, in the central part of Shaanxi province, China.

The county lies in the Guanzhong Plain, which has a population of about 390,000.

As 2019, Chengcheng County is divided to 1 subdistrict and 9 towns.

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