No matter where you move to at Temple, you will have Mormons around you. I live in Drexel Hill (Upper Darby) and there is about 25 of us in the neighborhood. One thing to look at when moving out here is not so much the location b/c you will be around other LDS, but the wards. These African wards are a bit funky. You sit in sacrament with people on their cell phones, playing PSP, checking out the new gold "ching" they got that week, and then as soon as church is over they all run to the bishop's office for free subway tokens and food. People who say the church is the same everywhere have never been to one of these wards. And I grew up outside of Utah in a branch, so I am not just some sheltered person.
The strangest thing was one sunday I walked out of priesthood and my wife is leaning against the wall looking very nervous/uncomfortable. So I walk up to her, and this short little guy is picking up on her! I go up give her a kiss and he just keeps on going. It took every last ounce of goodwill to not knock him through the glass doors....So, check out the wards. Some will be just like home and others will completely different.