Auburn,_Washington | isPartOf | Pierce_County,_Washington United_States | capital | Washington,_D.C. King_County,_Washington | country | United_States Auburn,_Washington | isPartOf | King_County,_Washington King_County,_Washington | largestCity | Seattle
Auburn is part of both Pierce and King (largest city is Seattle) counties, which are located in Washington. The capital of the United States is Washington D.C.