50 924 172 inhabitants (2016)
Koreans-Chinese 36.7 %, Chinese 13.8 %, Taiwanese 1.1 %, Vietnamese 9.3 %, Americans 4 %, Filipinos 3.8 %, Indonesians 3.1 %, Cambodians 3 %, Thaïs 5.7 %, other 19.5 % (2015)
Christian 31.6% (Protestant 24.0%, Catholic 7.6%), Buddhist 24.2%, other or unknown 0.9%, none 43.3% (2010)
$37 900 (2016)
310 221 sq km (mainland) + 82 202 sq km (joint regime area Japan/South Korea)
Republic of Korea Army, Navy, Air Force.
    1) South Korea is facing nuclear threats from its northern neighbor. South Korea is counting on the alliance with the United States, which deployed the High Altitude Area Defense Terminal in April 2017.
    2) Periodic incidents between North Korea and South Korea break out in the Yellow Sea: South Korea claims maritime borders.