As a Church we tend to believe that the scope of LDS mission outreach exceeds beyond its current bounds. One common misconception is that nations which have no congregations and no LDS Church presence account for the bulk of the unreached world's population to the Church. Only five percent of the world's population resides in such countries - the most populous being Iran. 29% of the world's population resides in nations in which there are no full-time missionaries assigned but one or more LDS congregations (such as China, Bangladesh, and Egypt). These nations tend to have major legal challenges preventing a formal Church establishment or proselytism. An additional 29% of the world's population resides in nations which have a minimal Church presence and tiny missionary force concentrated in just a handful of large cities (such as India, Indonesia, and Ethiopia).
Sadly, just 37% of all people live in nations with a limited to strong LDS Church presence. Nations with a limited Church presence have a developed Church presence in many areas, but large areas remain without any LDS presence. Such nations include Nigeria, Russia, and Japan. The United States, Brazil, and Mexico are examples of nations with a strong LDS Church presence as most areas have congregations and missionaries.
Efforts to expand the breadth and efficacy of the missionary program worldwide will most likely come to greater fruition by focusing on nations with a limited to minimal Latter-day Saint presence. These nations generally permit open missionary activity and have legally recognized the LDS Church. Although we should remember all areas of the world in our prayers and individual member-missionary efforts, these nations offer some of the greatest progress in spreading the Gospel among the unreached.