Best Hostels in the USA

AYH Ranch Hostel - Vashon Island, Washington
This unique lodging is located 25 minutes from Seattle and Tacoma. It is located on an island in Puget Sound in the heart of the Pacific Northwest, and offers a unique Western setting with Indian teepees, covered wagons,  log lodge with comfortable private rooms.  Camping is also available and includes a "u-fix" pancake breakfast. The beautiful 10 acre ranch boarders a 100 acre reserve and offers a relaxing retreat from the city. 
Greenwood Lodge - Bennington Vermont
Greenwood Lodge is located about eight miles east of Bennington, VT. Being in Bennington go on Highway Nine East, the street goes up a hill, as soon as you see a sign at the right side which says, Greenwood Lodge Camping, turn right and follow the sign to the Office.  It is one of the most beautiful hostels we have seen. It is in the main building of a Campground, therefore you are allowed to use all things common on a campground, such as canoes, boats, a game room, and BBQ area. 

Hostel Seattle - Seattle, Washington
This is one of the nicest hostels I've stayed in on my 6 month trip around the world. its cosy, homely, clean. Amazingly helpful and enthusiastic staff..the location is not central seattle, this does not let it down . The area around the hostel is beautiful and its 1 bus ride into town. You have to stay here!! This hostel is a small intimate hostel, centrally located. We are minutes from downtown Seattle and steps away from the waterfront of your own beach.

HI - Baltimore International Hostel - Baltimore, Maryland
HI-Baltimore is located in the heart of downtown Baltimore City. Nestled in between the Washington Monument and the Inner Harbor just off of Charles Street; HI-Baltimore is within walking distance to everything Baltimore City has to offer. Explore the world famous Lexington Market. Walk along the water and discover the neighborhoods of the Inner Harbor, Harbor East, and Fells Point. Spend the day relaxing in the parks surrounding the Washington Monument or take a short trip to the rolling hillsides of Patterson Park. If it’s the wild that you are after, visit the National Aquarium and the Maryland Zoo. Did someone say sports? Camden Yards and Ravens' Stadium are a quick 10 minute walk from the hostel, just on the other side of the Convention Center. And don’t forget Washington DC is just a short 50 minute train ride away.
Green Tortoise Seattle Hostel - Seattle, Washington
The Green Tortoise hostel is located across from the world famous Pike Place Market. The hostel is located at the corner of 1st and Pike Street across the street from the Pike Place Market sign. Free Internet Terminals and Wi-Fi, Free Continental Breakfast, Free Dinner three times a week.  The World Famous Green Tortoise Adventure Travel began over 30 years ago, with one sturdy bus and the realization that beautiful places, great food, and sociable people were the only essentials for gratifying travel experiences. The Green Tortoise hostels in San Francisco and Seattle are built on this fine tradition. The Green Tortoise San Francisco and Seattle hostels are created around a social communal experience. 
Times Square West Hostel - Manhattan, New York
Good location- nearby Times Square centre area, two blocks from Times Square & Subway station. We are just a few minutes by foot to Times Square and Broadway Shows. We have very good neighbours, 46th Street is very clean, beautiful and safe, and many famous restaurants and bars are around us. Our mattresses are 5 Star Hotel standard. We have different kinds of private rooms you can choose from, bathroom inside or share with 2 or 3 other people. Free bed sheets, blankets and towels to offer. We are a good place to stay and meet people in a homely atmosphere. Free wireless Internet, Free Internet and printer to use, Free long distance calls, 24-hour on-site hostel manager and Security Lockers. 
Hostelling International - San Diego, California
HI San Diego Hostels are the friendliest, cleanest, most comfortable hostels you'll find in San Diego. Offers comfortable dorm rooms and charming up to date private rooms, ensuite available; free breakfast included. Onsite internet access, Free WI-FI, full kitchen, onsite laundry facilities. 
HI- Portland, Oregon
The location is in Portland's historic and active city center district where you walk to everything, plus a 10-minute walk to Greyhound/Amtrak and 5-minute walk to airport MAX train. Friendly, helpful, & organized. Free bread & bagels, free Portland map, free local calls, free wireless Internet access with your laptop, free lockers and luggage storage.
Green Tortoise Backpackers, San Francisco, California
"Time and time again we hear people mention the Green Tortoise hostel as one of the best they've stayed in on their RTW trip - and we can see why. You get a whole lot of freebies for your money, a friendly and welcoming atmosphere. This place is backpacker heaven."
Music City Hostel - Nashville, Tennessee
Music City Hostel is a great place to stay for a few days or a longer time. The apartments are well furnished, comfortable and modern. The hosts are really nice, like to help you when you need it (for example, give a ride to go shopping!) and organize some outing (restaurants, etc.) to build a strong community feeling among the residents. I really enjoy my stay here and advise you to come to Music City Hostel when you are in Nashville!
Hostels in the USA
Top Ten Hostels in America
Best Hostels for Hiking or Backpacking
Best Hostels for Partying