Knollwood, IL
Population 1,907 · Illinois
About Knollwood, IL
Knollwood is a small community in Illinois with a population of 1,907 residents. The median household income is $133,452 per year, which is above the national average. The median age in Knollwood is 36.9 years.
Housing in Knollwood has a median home value of $372,500 and median monthly rent of $1,733. Of the 778 total housing units, the majority are owner-occupied, with 481 owner-occupied and 145 renter-occupied units.
The unemployment rate in Knollwood is 0.0% and the poverty rate is 8.8%. 45.6% of residents hold a bachelor's degree or higher. The average commute time is 23.5 minutes.
Cost of Living in Knollwood, IL
Compared to national averages, Knollwood has a median household income of $133,452 (78% above the national median of $75,149). Home values average $372,500, which is 52% above the national median. Monthly rent at $1,733 is 49% above the US average of $1,163. Within Illinois, Knollwood's income is 78% above the state average of $75,072, and home values are 125% above the state median of $165,779.
Why Live in Knollwood, IL?
Knollwood offers a strong local economy with a median household income of $133,452, well above the national average, and a strong job market with an unemployment rate of just 0.0%, and a well-educated community where 45.6% of residents hold a bachelor’s degree or higher. Additionally, the city features a low poverty rate of 8.8%, better than the national average, and short commute times averaging just 23.5 minutes.
Potential considerations include a competitive housing market where the typical home costs $372,500. However, Knollwood’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Knollwood has a population of 1,907 with a median age of 36.9 years. Compare Knollwood with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Knollwood
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Minonk | 1,909 | $62,000 | $120,600 | Compare |
| Jerome | 1,910 | $55,777 | $116,700 | Compare |
| Jonesboro | 1,912 | $58,309 | $114,400 | Compare |
| Sesser | 1,919 | $52,326 | $79,800 | Compare |
| Princeville | 1,932 | $81,944 | $162,000 | Compare |
| New Athens | 1,937 | $61,477 | $118,100 | Compare |
| Thornton | 1,876 | $61,111 | $146,600 | Compare |
| Maple Park | 1,939 | $106,250 | $265,000 | 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 Knollwood
What is the population of Knollwood, IL?
The population of Knollwood, IL is 1,907 according to the latest Census data.
What is the median household income in Knollwood?
The median household income in Knollwood, IL is $133,452 per year.
What is the median home value in Knollwood?
The median home value in Knollwood, IL is $372,500.
What is the average rent in Knollwood?
The median monthly rent in Knollwood, IL is $1,733.
What is the unemployment rate in Knollwood?
The unemployment rate in Knollwood, IL is 0.0%.