Currency and population of the nations on the North American

 Currency in use by the nations on the North American continent

United States Dollar is used in the United States and its territories.

Canadian dollar is used in Canada.

Nieuw Nederlandse gulden is used in the Kingdom of New Neterlands.

Texas Dollar is used in the Republic of Texas.

New England Dollar is used in the Commonwealth of New England.

Mexican peso is used in the  Second Mexican Empire.

 Population of the nations on the North American continent

Republic of Texas: 6,714,824

Commonwealth of New England: 8,437,290

Kingdom of New Netherlands: 17,639,307

Canada: 11,382,000

United States of America: 91,371,203

Second Mexican Empire : 18,000,000