I thought that it would be beneficial to discuss this topic internationally. This post divides the nations of the world where the Church publicly reports membership totals by geographical region. Click on the tables to make them larger.
Africa
Asia
Caribbean
Europe
North America
Pacific
South America
The Church used to frequently publish or refer to Church membership to population in Ensign articles and in the Church Almanac, but as of the past five years or so we have not see reference to this statistic with regularity. The Church Almanac eliminated this statistic last year.
We should ask the question why membership ratios are or are not important. I believe it provides an insight into how prevalent the Church is in the country. Entire provinces, states, islands, or regions do not have a Church presence in most countries with more than 1,000 people per Church member. These countries also tend to have large urban population centers with a very limited Church presence, like in Europe, where the Church may or may not have a strong foundation. Africa would definitely fall into category (with the exception of Cape Verde).
As for the nations that have about one Church member per 100 people, these are nations that tend to have a well established Church presence in major cities. Much of Latin America falls into this category. These countries will usually have multiple stakes in cities with a couple hundred thousand inhabitants or more and almost never have cities with over 50,000 inhabitants without a Church presence. A few nations in Asia are developing this characteristic, such as the Philippines and Mongolia, but as a whole Asia would definitely fall into the "one member in a 1,000 or more people" category.
Nations that have one Church member out of 50 or so people share many of the same characteristics as nations with one Church member out of a 100 people. The big difference between the two is that the Church is much more established in rural areas in countries where there are 50 inhabitants per one LDS member.
Lastly nations which have one member of the Church per 10 or fewer inhabitants are nations in which not only are the urban population centers pillars of strength for the Church, but rural areas as well. Most of the South Pacific and the Rocky Mountain Region of the United States are examples of these type of countries. There are rarely any towns over 1,000 inhabitants without a congregation of the Church.
As members of the Church, we follow the commandments of participating in missionary work and raising families which result in the ratio of members of the Church to the population decreasing. Areas of the world which are seeing this ratio fall the fastest (or are seeing the percentage of those who belong to the Church increase the fastest) are in the Caribbean, Asia and Africa. I imagine that we will see a couple "one member per 100 people" countries in Africa in about 10 years, which will likely be found in West Africa. Nearly every country in the world which a Church presence is seeing the percentage of Church members in the population increasing.
As for the nations that have about one Church member per 100 people, these are nations that tend to have a well established Church presence in major cities. Much of Latin America falls into this category. These countries will usually have multiple stakes in cities with a couple hundred thousand inhabitants or more and almost never have cities with over 50,000 inhabitants without a Church presence. A few nations in Asia are developing this characteristic, such as the Philippines and Mongolia, but as a whole Asia would definitely fall into the "one member in a 1,000 or more people" category.
Nations that have one Church member out of 50 or so people share many of the same characteristics as nations with one Church member out of a 100 people. The big difference between the two is that the Church is much more established in rural areas in countries where there are 50 inhabitants per one LDS member.
Lastly nations which have one member of the Church per 10 or fewer inhabitants are nations in which not only are the urban population centers pillars of strength for the Church, but rural areas as well. Most of the South Pacific and the Rocky Mountain Region of the United States are examples of these type of countries. There are rarely any towns over 1,000 inhabitants without a congregation of the Church.
As members of the Church, we follow the commandments of participating in missionary work and raising families which result in the ratio of members of the Church to the population decreasing. Areas of the world which are seeing this ratio fall the fastest (or are seeing the percentage of those who belong to the Church increase the fastest) are in the Caribbean, Asia and Africa. I imagine that we will see a couple "one member per 100 people" countries in Africa in about 10 years, which will likely be found in West Africa. Nearly every country in the world which a Church presence is seeing the percentage of Church members in the population increasing.
