Rural = Country - (Population 0-2,500)
Small Town = (Population 2,500-50,000)
Suburban = Outside of City or Town - (Population 50,000+ outside city)
Urban = City or Town - (Population 50,000+ in city)
Inner City = Large Cities - (Population 300,000+) - Usually areas of large cities that are densely populated, older, poorer, have higher unemployment, less education opportunities, and higher crime rates.