Big Rock, IL
Population 1,208 · Illinois
About Big Rock, IL
Big Rock is a small community in Illinois with a population of 1,208 residents. The median household income is $126,667 per year, which is above the national average. The median age in Big Rock is 40.6 years.
Housing in Big Rock has a median home value of $290,100 and median monthly rent of $0. Of the 442 total housing units, the majority are owner-occupied, with 405 owner-occupied and 17 renter-occupied units.
The unemployment rate in Big Rock is 3.6% and the poverty rate is 4.6%. 35.3% of residents hold a bachelor's degree or higher. The average commute time is 30.1 minutes.
Cost of Living in Big Rock, IL
Compared to national averages, Big Rock has a median household income of $126,667 (69% above the national median of $75,149). Home values average $290,100, which is 18% above the national median. Monthly rent at $0 is 100% below the US average of $1,163. Within Illinois, Big Rock's income is 69% above the state average of $75,072, and home values are 75% above the state median of $165,779.
Why Live in Big Rock, IL?
Big Rock offers a strong local economy with a median household income of $126,667, well above the national average, and rent that’s lower than the national average at $0/month, and a strong job market with an unemployment rate of just 3.6%. Additionally, the city features a well-educated community where 35.3% of residents hold a bachelor’s degree or higher, and a low poverty rate of 4.6%, better than the national average.
Big Rock has a population of 1,208 with a median age of 40.6 years. Compare Big Rock with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Big Rock
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Toledo | 1,209 | $59,881 | $92,200 | Compare |
| Martinsville | 1,212 | $65,000 | $73,600 | Compare |
| Third Lake | 1,203 | $150,893 | $329,500 | Compare |
| North Utica | 1,215 | $99,722 | $212,000 | Compare |
| Milledgeville | 1,199 | $59,688 | $89,200 | Compare |
| Camp Point | 1,197 | $58,438 | $111,700 | Compare |
| New Milford | 1,183 | $73,125 | $130,200 | Compare |
| Oreana | 1,183 | $93,194 | $129,100 | 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 Big Rock
What is the population of Big Rock, IL?
The population of Big Rock, IL is 1,208 according to the latest Census data.
What is the median household income in Big Rock?
The median household income in Big Rock, IL is $126,667 per year.
What is the median home value in Big Rock?
The median home value in Big Rock, IL is $290,100.
What is the average rent in Big Rock?
The median monthly rent in Big Rock, IL is $0.
What is the unemployment rate in Big Rock?
The unemployment rate in Big Rock, IL is 3.6%.