The typical owner-occupied home in Big Rock is worth about $337,900, 28% above the Illinois median of $263,300 and about the same as the national median of $332,700. Owners pay a median $7,655 a year in property taxes, about 2.27% of their home's value, higher than the Illinois rate of 2.01%. The median household earns $162,854 a year, so the median home costs 2.1 times the median income (3.2 times for Illinois). 99% of occupied homes here are lived in by their owners, and 85% of those owners still have a mortgage.
Big Rock at a glance
| Big Rock | Illinois | U.S. | |
|---|---|---|---|
| Median home value | $337,900 | $263,300 | $332,700 |
| Median property tax paid per year | $7,655 | $5,298 | $3,119 |
| Property tax as a share of value | 2.27% | 2.01% | 0.94% |
| Median household income | $162,854 | $83,390 | $80,734 |
| Homes lived in by their owners | 99% | 67% | 65% |
| Owner homes with a mortgage | 85% | 61% | 61% |
| Median monthly costs, owners with a mortgage | $2,591 | $1,987 | $1,963 |
| Those costs as a share of the owners' income | 17.9% | 20.6% | 21.0% |
| Median rent | – | $1,274 | $1,413 |
| Median year homes were built | 1941 | 1971 | 1980 |
| Vacant homes | 2.4% | 7.7% | 10.1% |
| Population | 1,548 | 12,694,798 | 334,922,499 |
What a typical home costs per month in Big Rock
At this week's average 30-year rate of 7.11%, buying the median Big Rock home of $337,900 with 20% down costs about $2,598 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $3,161, because the loan is bigger and FHA adds mortgage insurance.
Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $111,362 for the 20%-down payment. That payment is 19% of the median Big Rock household income of $162,854; at that income and 20% down, the 28% guideline points to a home of about $494,000.
| Down payment | $67,580 |
|---|---|
| Loan amount | $270,320 |
| Principal and interest | $1,818 |
| Property taxes (2.27% a year) | $639 |
| Homeowners insurance (our estimate, 0.5% a year) | $141 |
| PMI | $0 |
| Total per month | $2,598 |
Change the numbers in the calculator
| Down payment | $11,826 |
|---|---|
| Loan amount | $331,780 |
| Principal and interest | $2,232 |
| Property taxes (2.27% a year) | $639 |
| Homeowners insurance (our estimate, 0.5% a year) | $141 |
| FHA mortgage insurance | $149 |
| Total per month | $3,161 |
Change the numbers in the calculator
Questions about home buying in Big Rock
What is the median home value in Big Rock?
About $337,900 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.
How much are property taxes in Big Rock?
Homeowners pay a median $7,655 a year, which is about 2.27% of the median home value. Your bill depends on your home's assessed value and local rates.
What income do you need to buy a home in Big Rock?
For the median home with 20% down at 7.11%, the payment is about $2,598 a month. Keeping that under 28% of gross income takes about $111,362 a year.
More about Big Rock
- Mortgage Refinance in Big Rock
- Debt Relief in Big Rock
- Home Equity Loans in Big Rock
- Guides and quotes for mortgage refinance on our sister site, MortgageRefinance.com
Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data