What ‘Middle Class’ Meant in 1900 America
At the turn of the 20th century, the U.S. was in the midst of a significant and rapid transformation. Industrialization was creating new wealth for those it favored, sprawling cities were replacing rural towns as the centers of American life, and an entirely new layer of society was emerging between the working class and the hereditary rich.
This was the American middle class — a term already in use in the 18th century, albeit subject to various definitions — and it was a group defined not just by what people earned, but also by how they lived, how they were educated, and what they valued.

The Rise of the Desk Job
In 1900, America’s middle class was, in large part, a product of industrialization — a process that began in the late 18th and early 19th centuries, followed by what is often called the Second Industrial Revolution around 1870. At the turn of the 20th century, factories, railroads, banks, and corporations continued to expand rapidly across America, creating a growing demand for a new kind of skilled worker — professionals who worked not with their hands, but with their minds, such as managers, accountants, engineers, lawyers, doctors, and merchants.
These occupations came to be known as white-collar jobs, distinguished from working-class labor by the nature of the work itself. (The term “white collar” first appeared in 1919, referring to the collared dress shirts typically worn by office workers.) A middle-class worker typically sat at a desk, wore a suit, kept regular hours, and earned a salary rather than a daily wage.
But these middle-class jobs were still the minority in the industrial era. While today the middle class makes up about half of the U.S. population, in 1900 it was far smaller and still in the process of forming. The vast majority of Americans remained working class — factory workers, farm laborers, domestic servants — with a small wealthy elite at the top and a relatively thin, but growing, professional layer in between.









