Changhong Subdistrict (simplified Chinese: 长虹街道; traditional Chinese: 長虹街道; pinyin: Chánghóng Jiēdào) is a subdistrict located within Nankai District, Tianjin, China. It borders Shaogongzhuang and Jieyuan Subdistricts to the north, Lingdangge and Guangkai Subdistricts to the east, Wanxing and Jialing Street Subdistricts to the south, and Xiangyang Road Subdistrict to the west. Its total population was 73,346 as of 2010.^[1]

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Changhong Subdistrict 长虹街道
Subdistrict
Xiyingmen Bridge on the east of the subdistrict, 2011
Location in Nankai District
Changhong Subdistrict Show map of Tianjin Changhong Subdistrict Show map of China
Coordinates: 39°08′13″N 117°08′36″E
Country	China
Municipality	Tianjin
District	Nankai
Village-level Divisions	13 communities
Area
• Total	2.63 km2 (1.02 sq mi)
Elevation	6 m (20 ft)
Population  (2010)
• Total	73,346
• Density	28,000/km2 (72,000/sq mi)
Time zone	UTC+8 (China Standard)
Postal code	300110
Area code	022

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The name Changhong (Chinese: 长虹; lit. 'Long Rainbow') is taken from Changhong Park that is located on the southeastern section of the subdistrict.^[2]

Changhong subdistrict is on the southern bank of Nanyun River and western bank of Jin River.

So far in 2021, Changhong Subdistrict composes of 13 residential communities, all of which are listed below:^[3]

• Lake within Changhong Park, 2007
• Changhong Park in the winter, 2011
• Street view near Fenshui Avenue, 2014
• Aerial view of the Changhong Park, 2016