Buffalo, IL
Population 405 · Illinois
About Buffalo, IL
Buffalo is a small community in Illinois with a population of 405 residents. The median household income is $67,321 per year, which is near the national average. The median age in Buffalo is 48.6 years.
Housing in Buffalo has a median home value of $122,400 and median monthly rent of $475. Of the 197 total housing units, the majority are owner-occupied, with 123 owner-occupied and 48 renter-occupied units.
The unemployment rate in Buffalo is 2.7% and the poverty rate is 13.1%. 30.2% of residents hold a bachelor's degree or higher. The average commute time is 25.6 minutes.
How Buffalo Ranks in Illinois
Cost of Living in Buffalo, IL
Compared to national averages, Buffalo has a median household income of $67,321 (10% below the national median of $75,149). Home values average $122,400, which is 50% below the national median. Monthly rent at $475 is 59% below the US average of $1,163. Within Illinois, Buffalo's income is 10% below the state average of $75,072, and home values are 26% below the state median of $165,779.
Why Live in Buffalo, IL?
Buffalo offers affordable housing with a median home value of $122,400, below the US average of $244,900, and rent that’s lower than the national average at $475/month, and a strong job market with an unemployment rate of just 2.7%.
Potential considerations include median household income ($67,321) that falls below the national average. However, Buffalo’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Buffalo has a population of 405 with a median age of 48.6 years. Compare Buffalo with other cities to see how it stacks up, or explore all cities in Illinois.
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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 Buffalo
What is the population of Buffalo, IL?
The population of Buffalo, IL is 405 according to the latest Census data.
What is the median household income in Buffalo?
The median household income in Buffalo, IL is $67,321 per year.
What is the median home value in Buffalo?
The median home value in Buffalo, IL is $122,400.
What is the average rent in Buffalo?
The median monthly rent in Buffalo, IL is $475.
What is the unemployment rate in Buffalo?
The unemployment rate in Buffalo, IL is 2.7%.