Pew Research in 2018 reported on the surge of migration from Sub-Saharan Africa to Europe and the United States:
Many plan to move to another country in the next five years (this was written in 2018). Among the six countries polled, the share with plans to migrate ranges from Senegal (44%), Ghana (42%) and Nigeria (38%) to Tanzania (8%).
The number of emigrants to anywhere from each of these sub-Saharan countries grew by 50% or more between 2010 and 2017, significantly more than the 17% worldwide average increase for the same period. At the country level, only Syria had a higher rate of growth in its number of people living in other countries.
Europe:
Between 2010 and 2017, 970,000 sub-Saharan persons applied for asylum in Europe.
Nearly three-quarters (72%) of Europe’s sub-Saharan immigrant population was concentrated in just four countries: the UK (1.27 million), France (980,000), Italy (370,000) and Portugal (360,000)
The United States (2010- 2016 data)
In the U.S., those fleeing conflict also make up a portion of the more than 400,000 sub-Saharan migrants who moved to the States between 2010 and 2016. According to data from U.S. Department of Homeland Security and U.S. State Department, 110,000 individuals from sub-Saharan countries were resettled as refugees over this seven-year period. An additional 190,000 were granted lawful permanent residence by virtue of family ties; nearly 110,000 more entered the U.S. through the diversity visa program.
In 2019, there were 1.5 million sub-Saharan refugees in the U.S. there were 2.1 million sub-Saharan people in the U.S. in 2019 (go here). This means that the Sub-Saharan population rose by over 25% between 2010 and 2019.