I really am interested in King County, WA it's home to Seattle
Where is the place ?
it's the home of Boeing which was founded by William E. Boeing.
Wow,  that's interesting 
Yes, Seattle is known to be a port on the west coast.
OK,  really.  What are they known for
well mainly for being a major gateway for trade with Asia. 
Oh I see,  they  are masters of trade
States and remained in the top 5 in May 2015 with an annual growth rate of 2.1%. In July 2016, Seattle was again the fastest-growing major U.S. city, with a 3.1% annual growth rate. Seattle is the northernmost large city in the United States.
The city is situated on an isthmus between Puget Sound (an inlet of the Pacific Ocean) and Lake Washington, about south of the Canada–United States border. A major gateway for trade with Asia, Seattle is the fourth-largest
Boeing Field
Boeing Field, officially King County International Airport , is a public airport owned and operated by King County, five miles south of downtown Seattle, Washington. The airport is sometimes referred to as KCIA, but this is not the airport identifier. The airport has some passenger service operated by Kenmore Air and JetSuiteX, but is mostly used by general aviation and cargo. It is named for the founder of Boeing, William E. Boeing and was constructed in 1928, serving as the city's primary airport until the opening