The spread of electricity in the United States in the 1920s contributed to

Urban-to-rural migration or increased consumerism

The spread of electricity in the United States in the 1920s contributed to increased consumerism. With the availability of electricity, people could now purchase and use numerous home appliances such as refrigerators, washing machines, and vacuum cleaners. This led to a rise in consumer spending as households saw the value and convenience of these new technologies. Additionally, the advertising industry also grew during this time, promoting the benefits of electricity and encouraging people to buy various products. The increased consumerism stimulated economic growth and had a significant impact on the changing lifestyle and culture of the 1920s.