Size is not all that matters. But still, we would love to know how big “St. George in Louisiana” is. Here is the answer:
“St. George, Louisiana” covers an area of 0.09 square kilometers (0.03 square miles).
With people living in “St. George that comes to a population density of 0 inhabitants per square kilometer (0 / sq mi)
As a reference: The 8,398,748 people living in New York City are crammed onto 1214 sq km (468.73 sq mi), which results into a population density of 6918 inhabitants per square kilometer (17918 / sq mi).