Old Mill Creek, IL
Population 131 · Illinois
About Old Mill Creek, IL
Old Mill Creek is a small community in Illinois with a population of 131 residents. The median household income is $71,875 per year, which is above the national average. The median age in Old Mill Creek is 42.9 years.
Housing in Old Mill Creek has a median home value of $525,000 and median monthly rent of $1,596. Of the 77 total housing units, renting is more common than owning, with 24 owner-occupied and 36 renter-occupied units.
The unemployment rate in Old Mill Creek is 5.4% and the poverty rate is 6.1%. 72.2% of residents hold a bachelor's degree or higher. The average commute time is 22.4 minutes.
How Old Mill Creek Ranks in Illinois
Cost of Living in Old Mill Creek, IL
Compared to national averages, Old Mill Creek has a median household income of $71,875 (4% below the national median of $75,149). Home values average $525,000, which is 114% above the national median. Monthly rent at $1,596 is 37% above the US average of $1,163. Within Illinois, Old Mill Creek's income is 4% below the state average of $75,072, and home values are 217% above the state median of $165,779.
Why Live in Old Mill Creek, IL?
Old Mill Creek offers a well-educated community where 72.2% of residents hold a bachelor’s degree or higher, and a low poverty rate of 6.1%, better than the national average, and short commute times averaging just 22.4 minutes.
Potential considerations include median household income ($71,875) that falls below the national average, and a competitive housing market where the typical home costs $525,000. However, Old Mill Creek’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Old Mill Creek has a population of 131 with a median age of 42.9 years. Compare Old Mill Creek with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Old Mill Creek
Cities in Illinois with a similar population size.
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 Old Mill Creek With Other Cities
Frequently Asked Questions about Old Mill Creek
What is the population of Old Mill Creek, IL?
The population of Old Mill Creek, IL is 131 according to the latest Census data.
What is the median household income in Old Mill Creek?
The median household income in Old Mill Creek, IL is $71,875 per year.
What is the median home value in Old Mill Creek?
The median home value in Old Mill Creek, IL is $525,000.
What is the average rent in Old Mill Creek?
The median monthly rent in Old Mill Creek, IL is $1,596.
What is the unemployment rate in Old Mill Creek?
The unemployment rate in Old Mill Creek, IL is 5.4%.