Nam District is a district of Ulsan, South Korea. Its name means "South District". As of 2023, the district's population was 314,301. Nam Distriā¦Nam District is a district of Ulsan, South Korea. Its name means "South District". As of 2023, the district's population was 314,301. Nam District was established on July 15, 1985. On January 1, 1995, the district was consolidated after Ulsan City and Ulsan County merged. On July 15, 1997, Ulsan was elevated to metropolitan status.