Grundy County, Illinois home prices
Typical home $322,819 · +3.6% in a year · property tax 1.99%
The typical home in Grundy County is worth $322,819, 9% more than the Illinois typical home ($295,943). Values changed +3.6% in the past year and +27.8% over five years. Homeowners here pay a median 1.99% of their home's value in property tax each year ($6,440 on the typical home), versus 1.92% statewide.
Mortgage on the typical Grundy County home
| Down payment | Cash down | Loan | Principal + interest | PMI / MIP | Tax + insurance | Total / month | Income needed |
|---|---|---|---|---|---|---|---|
| 20% down | $64,564 | $258,255 | $1,737 | $0 | $698 | $2,435 | $104,400 |
| 10% down | $32,282 | $290,537 | $1,954 | $121 | $698 | $2,774 | $118,900 |
| 5% down | $16,141 | $306,678 | $2,063 | $128 | $698 | $2,889 | $123,800 |
| 3.5% down (FHA) | $11,299 | $316,972 | $2,132 | $143 | $698 | $2,973 | $127,400 |
Assumes a 30-year fixed loan at 7.11%, property tax of 1.99% 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 |
|---|---|---|---|
| Monroe County | $322,053 | +2.3% | 1.63% |
| Cook County | $340,258 | +6.0% | 1.91% |
| DeKalb County | $294,833 | +5.0% | 2.45% |
| Boone County | $286,262 | +6.4% | 2.18% |
| McHenry County | $367,683 | +4.7% | 2.36% |
| Will County | $376,285 | +2.8% | 2.24% |
| Kane County | $383,834 | +5.0% | 2.26% |
| McLean County | $260,569 | +1.9% | 2.17% |
| Kendall County | $395,398 | +3.2% | 2.37% |
| Lake County | $398,052 | +6.0% | 2.58% |
Frequently asked questions
What is the average home price in Grundy County, IL?
The typical home value in Grundy County is $322,819 (Zillow Home Value Index, September 2026).
How much do you need to earn to buy a house in Grundy County?
About $104,400 a year for the typical home with 20% down at a 7.11% 30-year rate.
What is the property tax rate in Grundy County?
The median effective rate is 1.99% of home value a year (Census ACS 2024 5-year estimates).