Caazapá is a department in Paraguay. The capital is the city of Caazapá. Among Paraguayans, the department is well known for its orange and mandarin trees, and for its forest hills. The eastern part of Caazapá is relatively undeveloped and consists of rolling hills and large swaths of Brazilian Atlantic interior rainforest between the San Rafael mountains to the south and the Ybytyruzú mountains to the north.