NEW YORK CITY—A day after its neighbor to the north announced its intent to enter the sweepstakes for Amazon's second US headquarters, New York City officials said the city will submit a proposal of its own that could involve a host of properties in all five boroughs.

City officials reported today that the city has thus far received more than two-dozen proposals for possible locations for Amazon's second headquarters—referred to as Amazon HQ2. Collectively, the proposals total more than 50 million square feet of commercial space across 23 different neighborhoods in all five boroughs, city officials note. The Amazon requirement would involve a total of about $5 billion in investment and 50,000 new jobs to the city if its bid were successful.

The proposals were submitted in response to a Request for Expressions of Interest published by the New York City Economic Development Corp. on Sept. 15, which sought to identify privately controlled sites that could complement a number of publicly-owned properties as potential locations for Amazon's second headquarters. Seattle-based Amazon earlier this month issued a Request for Proposals for cities that could provide sites that could provide Amazon at least 500,000 square feet of commercial space by 2019 and up to 8 million square feet beyond 2027.