What was the name of the last permanent Mormon settlement?

Answer 1

Do you mean the newest city which was settled by Mormons? The majority of the cities in Utah, southern Idaho, and northern Arizona, along with many in eastern Nevada, southern Canada, and northern Mexico, were settled by members of the Church of Jesus Christ of Latter-day Saints (commonly called the "Mormon" church) and majority of the population of these cities has remained mostly Mormon. It would be impossible to say which of these is the most recently founded. Salt Lake City, Utah can be considered the oldest remaining Mormon Settlement, although less than 50% of the city itself is a practicing Mormon. The majority of the other cities in Utah, Idaho, Arizona, Nevada, Canada, and Mexico were settled by Mormon pioneers between 1847 and 1900. These include small towns (such as Cardston in Alberta, Canada and Colonia Juarez in Chihuahua, Mexico) and large cities, like Las Vegas, Nevada.

There is no such thing as a "Mormon Settlement" today. Since the early 1900's, the Church has encouraged it's members and converts to build up the Church in their local communities rather than gather to the west. With the huge influx of people moving to the west, there is no one city or settlement that is 100% Mormon. Utah is the state with the highest Mormon population, with about 50% being practicing Mormons. Mormons gladly accept the diversity of religions and cultures moving to the west, and most Mormons would rather not live in an insular "100% Mormon" society.