Monmouth is a somewhat small city located in the state of Illinois. With a population of 8,639 people and two associated neighborhoods, Monmouth is the 242nd largest community in Illinois.

One interesting thing about the economy is that relatively large numbers of people worked from their home: 7.51% of the workforce. While this number may seem small overall, as a fraction of the total workforce this is high compared to the rest of the county. 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.

Because there are quite a few people attending college in Monmouth, it is thought of as a college town. To the benefit of the many students in the area, Monmouth provides a number of services, amenities and opportunities geared towards their needs and activities.

Compared to the rest of the country, citizens of Monmouth spend much less time in their cars: on average, their commute to work is only 15.87 minutes. This also means that noise and pollution levels in the city are less than they would otherwise be.

In terms of college education, Monmouth is nearly on par with the US average for all cities of 21.84%: 18.28% of adults 25 and older in Monmouth have a bachelor's degree or advanced degree.

The per capita income in Monmouth in 2022 was $29,501, which is lower middle income relative to Illinois and the nation. This equates to an annual income of $118,004 for a family of four. However, Monmouth contains both very wealthy and poor people as well.

Monmouth is a very ethnically-diverse city. The people who call Monmouth home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Monmouth residents report their race to be White, followed by Black or African-American. Monmouth also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 18.05% of the city’s residents. Important ancestries of people in Monmouth include German, Irish, English, Italian, and Scottish.

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