Monmouth, IL
Population 8,794 · Illinois
About Monmouth, IL
Monmouth is a small town located in Illinois with a population of 8,794 residents according to the latest US Census Bureau American Community Survey data. The median household income is $59,690 per year, which is 21% below the national median of $75,149. The median age of 35 years is notably younger the US median age of 38.9 years, indicating a younger, often more dynamic population base.
Housing Market Overview
The housing market in Monmouth features a median home value of $88,100, which is 64% below the national median of $244,900. This makes Monmouth one of the more affordable markets in the country, potentially attractive for first-time homebuyers. Median monthly rent is $652, 44% below the national average of $1,163/month. Of the 3,804 total housing units, 71% are owner-occupied (2,369 units) and 29% are renter-occupied (948 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in Monmouth shows an unemployment rate of 7.2%, which is significantly above the national rate of 3.7%, suggesting economic challenges in the area. The poverty rate stands at 16.5%, above the national average of 12.4%. Workers in Monmouth have an average one-way commute time of 16.1 minutes, one of the shorter commutes in the region.
Education & Demographics
18.7% of Monmouth residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. The lower educational attainment rate may reflect the area's industry mix, with more employment in trades, manufacturing, or agricultural sectors. The community's demographic composition includes 16.0% White, 2.9% Hispanic or Latino, 1.1% Black or African American, and 1.6% Asian residents, with 10.6% of the population being foreign-born.
Cost of Living in Monmouth, IL
Compared to national averages, Monmouth has a median household income of $59,690 (21% below the national median of $75,149). Home values average $88,100, which is 64% below the national median. Monthly rent at $652 is 44% below the US average of $1,163. Within Illinois, Monmouth's income is 20% below the state average of $75,072, and home values are 47% below the state median of $165,779.
Why Live in Monmouth, IL?
Monmouth offers affordable housing with a median home value of $88,100, below the US average of $244,900, and rent that’s lower than the national average at $652/month, and short commute times averaging just 16.1 minutes.
Potential considerations include median household income ($59,690) that falls below the national average. However, Monmouth’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Monmouth has a population of 8,794 with a median age of 35 years. Compare Monmouth with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Monmouth
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Savoy | 8,807 | $88,828 | $280,700 | Compare |
| Mascoutah | 8,743 | $93,902 | $226,300 | Compare |
| Harwood Heights | 8,851 | $79,651 | $316,400 | Compare |
| Olney | 8,864 | $57,997 | $96,900 | Compare |
| Glencoe | 8,715 | $250,001 | $1,354,900 | Compare |
| Lake Villa | 8,707 | $111,110 | $325,900 | Compare |
| Rock Falls | 8,683 | $48,733 | $82,400 | Compare |
| Manteno | 8,942 | $96,057 | $241,700 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Illinois
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
Compare Monmouth With Other Cities
Frequently Asked Questions about Monmouth
What is the population of Monmouth, IL?
The population of Monmouth, IL is 8,794 according to the latest US Census Bureau American Community Survey estimates. This makes it a small town in Illinois.
What is the median household income in Monmouth?
The median household income in Monmouth, IL is $59,690 per year, which is 21% below the national median of $75,149.
What is the median home value in Monmouth?
The median home value in Monmouth, IL is $88,100, which is 64% below the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in Monmouth?
The median monthly rent in Monmouth, IL is $652, which is 44% below the national average of $1,163/month.
What is the unemployment rate in Monmouth?
The unemployment rate in Monmouth, IL is 7.2%, compared to the national average of 3.7%. Job seekers may want to research the dominant industries in the area.
Is Monmouth, IL a good place to live?
Monmouth offers a moderate cost of living, affordable housing, and growing employment opportunities. With a population of 8,794 and a median age of 35, the city appeals to a broad range of residents.
How educated is Monmouth, IL?
18.7% of residents in Monmouth aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. The educational profile reflects the area's industry mix and employment landscape.
What is the cost of living in Monmouth?
Key cost-of-living indicators for Monmouth, IL: median home value is $88,100 (64% below national), median rent is $652/month, and median household income is $59,690. The home-value-to-income ratio is 1.5x, indicating relatively affordable housing relative to local incomes.
What is the poverty rate in Monmouth?
The poverty rate in Monmouth, IL is 16.5%, compared to the national average of 12.4%. Residents and prospective movers should be aware of the economic challenges facing parts of this community.
How diverse is Monmouth, IL?
Monmouth's population is 16.0% White, 2.9% Hispanic or Latino, 1.1% Black or African American, 1.6% Asian, and 4.7% two or more races. 10.6% of residents are foreign-born.