Where to look for assistance: most schools have Housing Offices for both on and off campus accommodation. This might be your best starting point. The Office might have already established contacts with agencies and have people in charge of aiding students. They will most likely also provide you with a list of agencies in the city if you decide to kook for housing on your own.

Room and board rent per academic year (usually 9 months): $ 2,200-5,500; some of these might require extra furnishing like lamps, sheet, towels etc which might cost up to $ 100-150.
Housing off campus: Hotel accommodations: $ 25-100 per night
Single furnished room: $150-350 per month
Furnished one bedroom apartment: $200-600 (depending on the size and area of the city this is for basic apartments with basic furniture and draperies; larger or luxury apartments cost much more)
Unfurnished Apartments: $150-500 per month (but the cost of buying the furniture might well exceed the cost of renting furnished apartments)