DeKalb County, Illinois home prices
Typical home $294,833 · +5.0% in a year · property tax 2.45%
The typical home in DeKalb County is worth $294,833, about the same as the Illinois typical home ($295,943). Values changed +5.0% in the past year and +38.8% over five years. Homeowners here pay a median 2.45% of their home's value in property tax each year ($7,230 on the typical home), versus 1.92% statewide.
Mortgage on the typical DeKalb County home
| Down payment | Cash down | Loan | Principal + interest | PMI / MIP | Tax + insurance | Total / month | Income needed |
|---|---|---|---|---|---|---|---|
| 20% down | $58,967 | $235,866 | $1,587 | $0 | $750 | $2,337 | $100,100 |
| 10% down | $29,483 | $265,349 | $1,785 | $111 | $750 | $2,646 | $113,400 |
| 5% down | $14,742 | $280,091 | $1,884 | $117 | $750 | $2,751 | $117,900 |
| 3.5% down (FHA) | $10,319 | $289,493 | $1,947 | $130 | $750 | $2,828 | $121,200 |
Assumes a 30-year fixed loan at 7.11%, property tax of 2.45% of the home value a year, homeowners insurance of 0.6% a year, PMI of 0.5% of the loan a year when the down payment is under 20%, and FHA mortgage insurance of 0.55% a year plus a 1.75% upfront premium added to the loan. Your rate, taxes and insurance will differ.
What it takes: see what you can afford by salary in Illinois · part of the Chicago metro area.
Illinois counties with similar prices
| County | Typical home | 1-yr change | Tax rate |
|---|---|---|---|
| Boone County | $286,262 | +6.4% | 2.18% |
| Monroe County | $322,053 | +2.3% | 1.63% |
| Grundy County | $322,819 | +3.6% | 1.99% |
| McLean County | $260,569 | +1.9% | 2.17% |
| Cook County | $340,258 | +6.0% | 1.91% |
| Jo Daviess County | $246,045 | +3.4% | 1.72% |
| Piatt County | $242,033 | +3.1% | 1.81% |
| Champaign County | $238,398 | +5.0% | 2.06% |
| Ogle County | $238,006 | +8.4% | 2.06% |
| Woodford County | $235,906 | +8.9% | 2.13% |
Frequently asked questions
What is the average home price in DeKalb County, IL?
The typical home value in DeKalb County is $294,833 (Zillow Home Value Index, September 2026).
How much do you need to earn to buy a house in DeKalb County?
About $100,100 a year for the typical home with 20% down at a 7.11% 30-year rate.
What is the property tax rate in DeKalb County?
The median effective rate is 2.45% of home value a year (Census ACS 2024 5-year estimates).