In December 2018, Filipino politician and businessman Chavit Singson, of the LCS Group of Companies which financed Miss Universe 2016, stated that the 2019 edition of the pageant would be held in Seoul, South Korea, which previously hosted Miss Universe 1980. He added that he would assist in preparations for holding the competition in South Korea, although the details were not finalized; the Miss Universe Organization had never confirmed this. Later, in April 2019, it was reported that both the Philippines and Rio de Janeiro, Brazil had become interested in hosting the competition as well. Interest in the Philippines grew following the win of Filipina Catriona Gray in Miss Universe 2018, looking to have her crown her successor in her home country, much like Pia Wurtzbach did at Miss Universe 2016. Meanwhile, Rio de Janeiro will be declared the World Capital of Architecture by UNESCO for 2020, and is reportedly looking to host more international events in the city in anticipation of this title. In August 2019, it emerged that Israel was also interested in hosting the competition. With a plan created by producers Danny Benaim and Assaf Blecher, talks regarding hosting the competition in Israel emerged after Tel Aviv successfully hosted the Eurovision Song Contest 2019. They stated that Israel was also interested in hosting the competition in 2020. Hosting the competition in Israel would cause difficulties regarding the numerous participants from countries that do not recognize Israel; these entrants would require special permission to enter the country.
In May 2019, Richelle Singson-Michael, the daughter of Chavit Singson, stated that the Philippines was one of several countries bidding to host the 2019 competition, and that her family's business LCS Group was committed to hosting either in the Philippines or in South Korea.
On October 31, 2019, the Miss Universe Organization confirmed that the competition would be held on December 8, 2019 in Atlanta, Georgia at Tyler Perry Studios.
The 2019 edition will see the debuts of Bangladesh and Equatorial Guinea, and the returns of Lithuania, Romania, Sierra Leone and Tanzania; Lithuania has not competed since 2014, Sierra Leone since 2016, and the others since 2017. Ghana, Greece, Guatemala, Hungary, Kyrgyzstan, Lebanon, Russia, Sri Lanka, Switzerland and Zambia have withdrawn from the competition. Prior to the competition, the Miss Universe Ghana organization was temporarily suspended; they will resume operations in 2020. Greece withdrew after their selected delegate Erika Kolani was unable to compete for undisclosed reasons. Kyrgyzstan withdrew from the competition after their selected delegate Elmara Buranbaeva, chose not to compete in any international pageant. Lebanon withdrew after the Miss Lebanon 2019 competition was continuously postponed and ultimately canceled due to the 2019 Lebanese protests. Alina Sanko, who was crowned Miss Russia 2019, was originally going to be sent to both Miss Universe and Miss World 2019, but was unable to do so due to overlapping dates. The Miss Russia organization was unable to finalize replacement plans for Miss Universe due to the length of time it took for the Miss Universe Organization to publish details about its date and venue, which would have made it difficult for the Russian entrant to receive an American visa. Zambia withdrew from the competition after Didia Mukwala who was crowned Miss Universe Zambia 2019 and the Miss Universe Zambia organization failed to book Mukwala's trip to Atlanta due to the Miss Universe Zambia organization's financial situation. While Guatemala, Hungary, Sri Lanka and Switzerland withdrew after their respective organizations failed to hold a national competition or appoint a delegate.