The typical owner-occupied home in Warren County is worth about $105,000, 60% below the Illinois median of $263,300 and 68% below the national median of $332,700. Owners pay a median $1,903 a year in property taxes, about 1.81% of their home's value, lower than the Illinois rate of 2.01%. The median household earns $67,385 a year, so the median home costs 1.6 times the median income (3.2 times for Illinois). 75% of occupied homes here are lived in by their owners, and 48% of those owners still have a mortgage.
Warren County at a glance
| Warren County | Illinois | U.S. | |
|---|---|---|---|
| Median home value | $105,000 | $263,300 | $332,700 |
| Median property tax paid per year | $1,903 | $5,298 | $3,119 |
| Property tax as a share of value | 1.81% | 2.01% | 0.94% |
| Median household income | $67,385 | $83,390 | $80,734 |
| Homes lived in by their owners | 75% | 67% | 65% |
| Owner homes with a mortgage | 48% | 61% | 61% |
| Median monthly costs, owners with a mortgage | $1,059 | $1,987 | $1,963 |
| Those costs as a share of the owners' income | 17.5% | 20.6% | 21.0% |
| Median rent | $788 | $1,274 | $1,413 |
| Rent as a share of renters' income | 20.3% | 29.1% | 30.6% |
| Median year homes were built | 1956 | 1971 | 1980 |
| Vacant homes | 10.5% | 7.7% | 10.1% |
| Population | 16,447 | 12,694,798 | 334,922,499 |
What a typical home costs per month in Warren County
At this week's average 30-year rate of 7.11%, buying the median Warren County home of $105,000 with 20% down costs about $767 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $942, 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 $32,880 for the 20%-down payment. That payment is 14% of the median Warren County household income of $67,385; at that income and 20% down, the 28% guideline points to a home of about $215,000.
The median rent here is $788 a month, a little more than the monthly cost of owning the median home with 20% down.
| Down payment | $21,000 |
|---|---|
| Loan amount | $84,000 |
| Principal and interest | $565 |
| Property taxes (1.81% a year) | $158 |
| Homeowners insurance (our estimate, 0.5% a year) | $44 |
| PMI | $0 |
| Total per month | $767 |
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| Down payment | $3,675 |
|---|---|
| Loan amount | $103,098 |
| Principal and interest | $694 |
| Property taxes (1.81% a year) | $158 |
| Homeowners insurance (our estimate, 0.5% a year) | $44 |
| FHA mortgage insurance | $46 |
| Total per month | $942 |
Change the numbers in the calculator
Questions about home buying in Warren County
What is the median home value in Warren County?
About $105,000 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.
How much are property taxes in Warren County?
Homeowners pay a median $1,903 a year, which is about 1.81% 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 Warren County?
For the median home with 20% down at 7.11%, the payment is about $767 a month. Keeping that under 28% of gross income takes about $32,880 a year.
More about Warren County
- Mortgage Refinance in Warren County
- Debt Relief in Warren County
- Home Equity Loans in Warren County
- 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