As of my knowledge cutoff date in October 2021, there is no "newest" Trump Plaza in the USA. Trump Plaza hotels and casinos used to exist in Atlantic City, New Jersey, but it closed down and was demolished in 2021. There may be other Trump-branded properties in the country, but they are not specifically called "Trump Plaza".
Kowloon City Plaza was created in 1993.
City National Plaza was created in 1972.
City Hall Plaza - Boston - was created in 1968.
Jersey City Giants was created in 1937.
Trump Tower - New York City - was created in 1983.
Queensboro Plaza - New York City Subway - was created in 1917.
Devil in Jersey City was created in 2004.
Formerly known as the "Golden Nugget", The Trump Marina was founded by Donald Trump and was opened in 1985. It is located in Alantic City, New Jersey.
New Jersey City University was created in 1929.
Waldo Tunnel - Jersey City - was created in 1897.
Jersey City Fire Department was created on 1829-09-21.