Plymouth, IL
Population 512 · Illinois
About Plymouth, IL
Plymouth is a small community in Illinois with a population of 512 residents. The median household income is $39,750 per year, which is below the national average. The median age in Plymouth is 45.6 years.
Housing in Plymouth has a median home value of $55,500 and median monthly rent of $796. Of the 251 total housing units, the majority are owner-occupied, with 184 owner-occupied and 40 renter-occupied units.
The unemployment rate in Plymouth is 20.3% and the poverty rate is 29.5%. 9.0% of residents hold a bachelor's degree or higher. The average commute time is 34.2 minutes.
Cost of Living in Plymouth, IL
Compared to national averages, Plymouth has a median household income of $39,750 (47% below the national median of $75,149). Home values average $55,500, which is 77% below the national median. Monthly rent at $796 is 32% below the US average of $1,163. Within Illinois, Plymouth's income is 47% below the state average of $75,072, and home values are 67% below the state median of $165,779.
Why Live in Plymouth, IL?
Plymouth offers affordable housing with a median home value of $55,500, below the US average of $244,900, and rent that’s lower than the national average at $796/month.
Potential considerations include median household income ($39,750) that falls below the national average. However, Plymouth’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Plymouth has a population of 512 with a median age of 45.6 years. Compare Plymouth with other cities to see how it stacks up, or explore all cities in Illinois.
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Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Plymouth
What is the population of Plymouth, IL?
The population of Plymouth, IL is 512 according to the latest Census data.
What is the median household income in Plymouth?
The median household income in Plymouth, IL is $39,750 per year.
What is the median home value in Plymouth?
The median home value in Plymouth, IL is $55,500.
What is the average rent in Plymouth?
The median monthly rent in Plymouth, IL is $796.
What is the unemployment rate in Plymouth?
The unemployment rate in Plymouth, IL is 20.3%.