I'on is in Mount Pleasant. It's a very nice community, very "downtown Charleston" like with a suburban feel with the front porches and tall, thin homes. It's in what is considered "old" Mt. Pleasant, which is the area that was part of the original aspect of the town that grew around the base of the bridges that connect it to downtown - lot of money in that area, old homes, big homes, etc. (Most of new Mt. Pleasant is further up 17, suburban sprawl, tract neighborhoods, etc.). It's no where close to the money it takes to live downtown but it isn't cheap either and certainly would not be in the affordable range for a regular, non-reality star young woman in her 20s with two kids and no other discernible means of income. It is also probably close to an hour away from where her parents live but less than 10 minutes from downtown and all of the bars and party scenes.
