Big Rock, IL
Population 1,208 · Illinois
About Big Rock, IL
Big Rock is a small town located in Illinois with a population of 1,208 residents according to the latest US Census Bureau American Community Survey data. The median household income is $126,667 per year, which is 69% above the national median of $75,149. The median age of 40.6 years is close to the US median age of 38.9 years.
Housing Market Overview
The housing market in Big Rock features a median home value of $290,100, which is 18% above the national median of $244,900. This positions Big Rock in a moderately priced market relative to the rest of the country. Median monthly rent is $0, 100% below the national average of $1,163/month. Of the 442 total housing units, 96% are owner-occupied (405 units) and 4% are renter-occupied (17 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in Big Rock shows an unemployment rate of 3.6%, which is lower than the national rate of 3.7%, indicating a relatively strong job market. The poverty rate stands at 4.6%, below the national average of 12.4%, reflecting generally favorable economic conditions. Workers in Big Rock have an average one-way commute time of 30.1 minutes.
Education & Demographics
35.3% of Big Rock residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This is in line with national trends in educational attainment. The community's demographic composition includes 7.9% White, 1.7% Hispanic or Latino, 0.0% Black or African American, and 1.5% Asian residents, with 3.5% of the population being foreign-born.
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.
Compare Big Rock With Other Cities
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 US Census Bureau American Community Survey estimates. This makes it a small town in Illinois.
What is the median household income in Big Rock?
The median household income in Big Rock, IL is $126,667 per year, which is 69% above the national median of $75,149.
What is the median home value in Big Rock?
The median home value in Big Rock, IL is $290,100, which is 18% above the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in Big Rock?
The median monthly rent in Big Rock, IL is $0, which is 100% below the national average of $1,163/month.
What is the unemployment rate in Big Rock?
The unemployment rate in Big Rock, IL is 3.6%, compared to the national average of 3.7%. This lower-than-average rate suggests a relatively healthy local job market.
Is Big Rock, IL a good place to live?
Big Rock offers above-average incomes, a competitive housing market, and a strong job market. With a population of 1,208 and a median age of 40.6, the city appeals to a broad range of residents.
How educated is Big Rock, IL?
35.3% of residents in Big Rock aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This above-average educational attainment often reflects a knowledge-based local economy.
What is the cost of living in Big Rock?
Key cost-of-living indicators for Big Rock, IL: median home value is $290,100 (18% above national), median rent is $0/month, and median household income is $126,667. The home-value-to-income ratio is 2.3x, indicating relatively affordable housing relative to local incomes.
What is the poverty rate in Big Rock?
The poverty rate in Big Rock, IL is 4.6%, compared to the national average of 12.4%. This below-average poverty rate reflects generally favorable economic conditions in the community.
How diverse is Big Rock, IL?
Big Rock's population is 7.9% White, 1.7% Hispanic or Latino, 0.0% Black or African American, 1.5% Asian, and 0.3% two or more races. 3.5% of residents are foreign-born.