|Country||People's Republic of China|
|• Total||1.91 km2 (0.74 sq mi)|
|• Density||8,000/km2 (21,000/sq mi)|
|Time zone||China Standard (UTC+8)|
|Hokkien POJ||Kó-lōng-sū Ke-lōu|
Gulangyu covers an area of 1.91 square kilometres (0.74 sq mi), with a household population of 15,373.
Until 2003, Gulangyu was a district, one of four in the municipality not located on Xiamen Island. Thus Gulangyu had its own gong'an fenju (公安分局, roughly analogous to a Sheriff's Office) and Lower-level People's Lawcourt, as well as its own government.
In May of that year Gulangyu District was downgraded and, along with Kaiyuan District, absorbed into Siming, and has since been administered, policed, and adjudicated from Xiamen Island, just across the Lujiang River.