Original: Growth and prosperity (1900 - 1945) By the United States Census of 1900, the population of Scranton was about 102,026, making it the 38th largest city in the United States.
Simplified: It was the first in the United States. The United States Census said that Scranton had a population of 102,026 people in the year 1900. This made it the 38th largest city in the United States.