Main article: Springfield (The Simpsons)
The Simpsons takes place in the fictional American town of Springfield in an unknown and impossible-to-determine U.S. state. The show is intentionally evasive in regard to Springfield's location. Springfield's geography, and that of its surroundings, contains coastlines, deserts, vast farmland, tall mountains, or whatever the story or joke requires. Groening has said that Springfield has much in common with Portland, Oregon, the city where he grew up. The name "Springfield" is a common one in America and appears in 22 states. Groening has said that he named it after Springfield, Oregon, and the fictitious Springfield which was the setting of the series Father Knows Best. He "figured out that Springfield was one of the most common names for a city in the U.S. In anticipation of the success of the show, I thought, 'This will be cool; everyone will think it's their Springfield.' And they do."
Main articles: Media in The Simpsons, Politics in The Simpsons, and Religion in The Simpsons
The Simpsons uses the standard setup of a situational comedy, or sitcom, as its premise. The series centers on a family and their life in a typical American town, serving as a satirical parody of a working and middle class American lifestyle. However, because of its animated nature, The Simpsons' scope is larger than that of a regular sitcom. The town of Springfield acts as a complete universe in which characters can explore the issues faced by modern society. By having Homer work in a nuclear power plant, the show can comment on the state of the environment. Through Bart and Lisa's days at Springfield Elementary School, the show's writers illustrate pressing or controversial issues in the field of education. The town features a vast array of media channels—from kids' television programming to local news, which enables the producers to make jokes about themselves and the entertainment industry.