united_states | capital | washington,_dc <tsp> auburn,_washington | ispartof | pierce_county,_washington <tsp> pierce_county,_washington | largestcity | tacoma,_washington <tsp> king_county,_washington | country | united_states <tsp> auburn,_washington | ispartof | king_county,_washington <sep> the united states of america (usa or usa), commonly known as the united states (us or us) or america, is a country primarily located in north america it consists of 50 states, a federal district, five major unincorporated territories, nine minor outlying islands, and 326 indian reservations the united states is the world's third-largest country by both land and total area 
the capital of the united states is washington dc. and king county is part of it. auburn is part of pierce county. washington and king county but tacoma is the largest city.the united states is the world's third-largest country by both land and total area