Cheap Apartments For Rent In Mississippi . One bedroom apartments average $886 and range from $520 to $1,130. It has a population of 2.987 million people and is well known for the mississippi river, which runs across the state's western border. Ridgeland, MS Apartments Sunchase Ridgeland Apartments from www.caseusa.com Three bedroom apartments average $989 and range from $313 to $1,470. Finding a home nearby is easier than you think. Get instant access to tons of relevant information about.