Gillespie, IL
Population 3,118 · Illinois
About Gillespie, IL
Gillespie is a small community in Illinois with a population of 3,118 residents. The median household income is $76,806 per year, which is above the national average. The median age in Gillespie is 44.7 years.
Housing in Gillespie has a median home value of $89,500 and median monthly rent of $756. Of the 1,465 total housing units, the majority are owner-occupied, with 836 owner-occupied and 446 renter-occupied units.
The unemployment rate in Gillespie is 4.6% and the poverty rate is 17.0%. 18.6% of residents hold a bachelor's degree or higher. The average commute time is 30.5 minutes.
Cost of Living in Gillespie, IL
Compared to national averages, Gillespie has a median household income of $76,806 (2% above the national median of $75,149). Home values average $89,500, which is 63% below the national median. Monthly rent at $756 is 35% below the US average of $1,163. Within Illinois, Gillespie's income is 2% above the state average of $75,072, and home values are 46% below the state median of $165,779.
Why Live in Gillespie, IL?
Gillespie offers a strong local economy with a median household income of $76,806, well above the national average, and affordable housing with a median home value of $89,500, below the US average of $244,900, and rent that’s lower than the national average at $756/month.
Gillespie has a population of 3,118 with a median age of 44.7 years. Compare Gillespie with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Gillespie
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| North Barrington | 3,113 | $216,250 | $690,900 | Compare |
| Georgetown | 3,105 | $56,781 | $70,500 | Compare |
| Carlyle | 3,134 | $67,083 | $151,900 | Compare |
| Knoxville | 3,137 | $80,385 | $139,900 | Compare |
| East Dundee | 3,156 | $87,102 | $260,000 | Compare |
| Momence | 3,076 | $52,048 | $159,600 | Compare |
| Holiday Shores | 3,162 | $98,265 | $231,300 | Compare |
| Sleepy Hollow | 3,165 | $147,407 | $365,200 | 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 Gillespie
What is the population of Gillespie, IL?
The population of Gillespie, IL is 3,118 according to the latest Census data.
What is the median household income in Gillespie?
The median household income in Gillespie, IL is $76,806 per year.
What is the median home value in Gillespie?
The median home value in Gillespie, IL is $89,500.
What is the average rent in Gillespie?
The median monthly rent in Gillespie, IL is $756.
What is the unemployment rate in Gillespie?
The unemployment rate in Gillespie, IL is 4.6%.