Rock Falls, IL
Population 8,683 · Illinois
About Rock Falls, IL
Rock Falls is a small community in Illinois with a population of 8,683 residents. The median household income is $48,733 per year, which is below the national average. The median age in Rock Falls is 39.9 years.
Housing in Rock Falls has a median home value of $82,400 and median monthly rent of $745. Of the 4,471 total housing units, the majority are owner-occupied, with 2,568 owner-occupied and 1,345 renter-occupied units.
The unemployment rate in Rock Falls is 5.5% and the poverty rate is 22.7%. 15.0% of residents hold a bachelor's degree or higher. The average commute time is 16.3 minutes.
Cost of Living in Rock Falls, IL
Compared to national averages, Rock Falls has a median household income of $48,733 (35% below the national median of $75,149). Home values average $82,400, which is 66% below the national median. Monthly rent at $745 is 36% below the US average of $1,163. Within Illinois, Rock Falls's income is 35% below the state average of $75,072, and home values are 50% below the state median of $165,779.
Why Live in Rock Falls, IL?
Rock Falls offers affordable housing with a median home value of $82,400, below the US average of $244,900, and rent that’s lower than the national average at $745/month, and short commute times averaging just 16.3 minutes.
Potential considerations include median household income ($48,733) that falls below the national average. However, Rock Falls’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Rock Falls has a population of 8,683 with a median age of 39.9 years. Compare Rock Falls with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Rock Falls
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Lake Villa | 8,707 | $111,110 | $325,900 | Compare |
| Glencoe | 8,715 | $250,001 | $1,354,900 | Compare |
| Clarendon Hills | 8,642 | $125,826 | $595,500 | Compare |
| Mascoutah | 8,743 | $93,902 | $226,300 | Compare |
| Glenwood | 8,620 | $71,376 | $182,900 | Compare |
| Harrisburg | 8,608 | $48,488 | $84,800 | Compare |
| Monmouth | 8,794 | $59,690 | $88,100 | Compare |
| Savoy | 8,807 | $88,828 | $280,700 | 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.
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Frequently Asked Questions about Rock Falls
What is the population of Rock Falls, IL?
The population of Rock Falls, IL is 8,683 according to the latest Census data.
What is the median household income in Rock Falls?
The median household income in Rock Falls, IL is $48,733 per year.
What is the median home value in Rock Falls?
The median home value in Rock Falls, IL is $82,400.
What is the average rent in Rock Falls?
The median monthly rent in Rock Falls, IL is $745.
What is the unemployment rate in Rock Falls?
The unemployment rate in Rock Falls, IL is 5.5%.