Going by land size covered, or land area, the biggest airport in the US is Denver International. It covers 34,000 acres (53 square miles).
Texas is the largest state according to land size.
Alaska
Yes denver is the largest airport in us
Texas has the largest in land size.
Biggest in size is the airport in dallas, fortworth largest in terms of passengers is Atlanta, GA (ATL) The Second Largest is JFK, in New York.
O'hare Airport
No, the 17th largest county in land size in the US is White Pine County in Nevada. The 29 largest counties in the US are all west of, or part of, the Rocky Mountains. Marion County is not in the top 100 largest counties by land area in the US.
The "largest" as in square feet or in terms of land mass is Denver/DIA which is situated on 34,000 acres or 53 square miles of land. Atlanta & Chicago are often in the top spot for "largest airport" by passenger volume but neither has the largest land area. Last year Atlanta/ATL was the "largest" with a passenger volume of 85,907,423 people and Chicago/ORD was second with 76,510,003.
Alaska is the largest US state. Its land area is 571,951 square miles (1,481,347 square kilometres).
Los Angeles International Airport is the second largest airport by area in the USA.
OHARE airport
It depends on your definition of largest. The most populous city in the US is New York City with a 2010 census population of 8,175,133. The largest by land area is Sitka, Alaska with a land size of 2870.3 square miles.