Jefferson is a very small city located in the state of Iowa. With a population of 4,100 people and two associated neighborhoods, Jefferson is the 115th largest community in Iowa.

Also of interest is that Jefferson has more people living here who work in computers and math than 95% of the places in the US.

Telecommuters are a relatively large percentage of the workforce: 7.39% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

Residents will find that the city is relatively quiet. This is because it is not over-populated, and it has fewer college students, renters, and young children - all of whom can be noisy at times. So, if you're looking for a relatively peaceful place to live, Jefferson is worth considering.

The education level of Jefferson citizens is a little higher than the average for US cities and towns: 21.74% of adults in Jefferson have at least a bachelor's degree.

The per capita income in Jefferson in 2022 was $38,198, which is upper middle income relative to Iowa and the nation. This equates to an annual income of $152,792 for a family of four. However, Jefferson contains both very wealthy and poor people as well.

The people who call Jefferson home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Jefferson residents report their race to be White, followed by Black or African-American. Important ancestries of people in Jefferson include German, English, Irish, Norwegian, and French.

The most common language spoken in Jefferson is English. Other important languages spoken here include Spanish and Polish.