Tanzania vs. Democratic Republic of the Congo

Tanzania has the largest population in East Africa and the lowest population density; almost a third of the population is urban. Tanzania's youthful population - about two-thirds of the population is under 25 - is growing rapidly because of the high total fertility rate of 4.8 children per woman. Progress in reducing the birth rate has stalled, sustaining the country's nearly 3% annual growth. The maternal mortality rate has improved since 2000, yet it remains very high because of early and frequent pregnancies, inadequate maternal health services, and a lack of skilled birth attendants - problems that are worse among poor and rural women. Tanzania has made strides in reducing under-5 and infant mortality rates, but a recent drop in immunization threatens to undermine gains in child health. Malaria is a leading killer of children under 5, while HIV is the main source of adult mortality

For Tanzania, most migration is internal, rural to urban movement, while some temporary labor migration from towns to plantations takes place seasonally for harvests. Tanzania was Africa's largest refugee-hosting country for decades, hosting hundreds of thousands of refugees from the Great Lakes region, primarily Burundi, over the last fifty years. However, the assisted repatriation and naturalization of tens of thousands of Burundian refugees between 2002 and 2014 dramatically reduced the refugee population. Tanzania is increasingly a transit country for illegal migrants from the Horn of Africa and the Great Lakes region who are heading to southern Africa for security reasons and/or economic opportunities. Some of these migrants choose to settle in Tanzania.

Despite a wealth of fertile soil, hydroelectric power potential, and mineral resources, the Democratic Republic of the Congo (DRC) struggles with many socioeconomic problems, including high infant and maternal mortality rates, malnutrition, poor vaccination coverage, lack of access to improved water sources and sanitation, and frequent and early fertility. Ongoing conflict, mismanagement of resources, and a lack of investment have resulted in food insecurity; almost 30 percent of children under the age of 5 are malnourished. The overall coverage of basic public services - education, health, sanitation, and potable water - is very limited and piecemeal, with substantial regional and rural/urban disparities. Fertility remains high at almost 5 children per woman and is likely to remain high because of the low use of contraception and the cultural preference for larger families.

The DRC is a source and host country for refugees. Between 2012 and 2014, more than 119,000 Congolese refugees returned from the Republic of Congo to the relative stability of northwest DRC, but more than 540,000 Congolese refugees remained abroad as of year-end 2015. In addition, an estimated 3.9 million Congolese were internally displaced as of October 2017, the vast majority fleeing violence between rebel group and Congolese armed forces. Thousands of refugees have come to the DRC from neighboring countries, including Rwanda, the Central African Republic, and Burundi.