[3] During the Spring and Autumn period, the area of present-day Xunyang County belonged to the State of Chu.

[4] In 312 BCE, Xunyang County was taken by the State of Qin following the Battle of Danyang and Lantian [zh].

[4] In 1964, its name was changed from Xunyang County (Chinese: 洵阳县; pinyin: Xúnyáng Xiàn) to Xunyang County (Chinese: 旬阳县; pinyin: Xúnyáng Xiàn), due to the uncommon nature of the previous first character.

[3] In 2019, Xunyang County reported a gross domestic product (GDP) of ¥18.705 billion, an 8.4% annual increase.

[7] The county's main agricultural products include various grains, oils, tobacco, and vegetables.

[7] Xunyang County is home to deposits of mercury, antimony, aluminum, zinc, gold, barite, and slate.

[citation needed] 14 train stations serve the county, which is home to 128 kilometers of railroad.