China shares international land borders with 14 sovereign states. In addition, there is a 30-kilometre (19 mi) internal border with the special administrative region of Hong Kong, which was a British dependency before 1997, and a 3-kilometre (1.9 mi) internal border with Macau, a Portuguese territory until 1999. With land borders of 22,117 kilometres (13,743 mi) in total, China has the longest aggregate land borders of any country.
The table below, is a table of countries and territories who share a land border with China around its perimeter. The in parenthesis are their lengths in miles.
|Country||Length ((km) and (mi))||Notes|
|North Korea||1,416 (879)|
|Pakistan||596 (370)||Disputed; depends on the resolution of territorial conflicts between India and China, and between India and Pakistan|
|India||3,488 (2,167)||Disputed; in three sections, separated by Nepal and Bhutan; depends on the resolution of territorial conflicts between India and China, and between India and Pakistan|
|Bhutan||470 (292)||Disputed; depends on the resolution of various territorial conflicts between Bhutan and China|