Cortland, IL
Population 4,556 · Illinois
About Cortland, IL
Cortland is a small community in Illinois with a population of 4,556 residents. The median household income is $82,750 per year, which is above the national average. The median age in Cortland is 31.9 years.
Housing in Cortland has a median home value of $203,700 and median monthly rent of $1,420. Of the 1,631 total housing units, the majority are owner-occupied, with 1,215 owner-occupied and 362 renter-occupied units.
The unemployment rate in Cortland is 6.1% and the poverty rate is 8.0%. 31.1% of residents hold a bachelor's degree or higher. The average commute time is 27.4 minutes.
Cost of Living in Cortland, IL
Compared to national averages, Cortland has a median household income of $82,750 (10% above the national median of $75,149). Home values average $203,700, which is 17% below the national median. Monthly rent at $1,420 is 22% above the US average of $1,163. Within Illinois, Cortland's income is 10% above the state average of $75,072, and home values are 23% above the state median of $165,779.
Why Live in Cortland, IL?
Cortland offers a strong local economy with a median household income of $82,750, well above the national average, and affordable housing with a median home value of $203,700, below the US average of $244,900, and a low poverty rate of 8.0%, better than the national average.
Cortland has a population of 4,556 with a median age of 31.9 years. Compare Cortland with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Cortland
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Creve Coeur | 4,572 | $49,853 | $86,500 | Compare |
| Stone Park | 4,504 | $75,165 | $218,300 | Compare |
| Fox River Grove | 4,501 | $125,104 | $289,200 | Compare |
| Watseka | 4,630 | $42,794 | $104,400 | Compare |
| Olympia Fields | 4,636 | $107,656 | $289,900 | Compare |
| Peotone | 4,462 | $104,792 | $261,400 | Compare |
| Fairfield | 4,658 | $41,026 | $91,800 | Compare |
| Tuscola | 4,675 | $77,034 | $148,100 | 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.
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Frequently Asked Questions about Cortland
What is the population of Cortland, IL?
The population of Cortland, IL is 4,556 according to the latest Census data.
What is the median household income in Cortland?
The median household income in Cortland, IL is $82,750 per year.
What is the median home value in Cortland?
The median home value in Cortland, IL is $203,700.
What is the average rent in Cortland?
The median monthly rent in Cortland, IL is $1,420.
What is the unemployment rate in Cortland?
The unemployment rate in Cortland, IL is 6.1%.