Mercer County, Illinois home prices
Typical home $175,685 · +7.8% in a year · property tax 1.96%
The typical home in Mercer County is worth $175,685, 41% less than the Illinois typical home ($295,943). Values changed +7.8% in the past year and +7.7% over five years. Homeowners here pay a median 1.96% of their home's value in property tax each year ($3,447 on the typical home), versus 1.92% statewide.
Mortgage on the typical Mercer County home
| Down payment | Cash down | Loan | Principal + interest | PMI / MIP | Tax + insurance | Total / month | Income needed |
|---|---|---|---|---|---|---|---|
| 20% down | $35,137 | $140,548 | $945 | $0 | $375 | $1,321 | $56,600 |
| 10% down | $17,569 | $158,117 | $1,064 | $66 | $375 | $1,505 | $64,500 |
| 5% down | $8,784 | $166,901 | $1,123 | $70 | $375 | $1,567 | $67,200 |
| 3.5% down (FHA) | $6,149 | $172,503 | $1,160 | $78 | $375 | $1,613 | $69,100 |
Assumes a 30-year fixed loan at 7.11%, property tax of 1.96% 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 Davenport metro area.
Illinois counties with similar prices
| County | Typical home | 1-yr change | Tax rate |
|---|---|---|---|
| Saint Clair County | $177,682 | +1.2% | 2.03% |
| Livingston County | $172,343 | +10.9% | 2.05% |
| Henry County | $171,732 | +8.0% | 1.99% |
| Cumberland County | $171,136 | +9.2% | 1.59% |
| Jasper County | $170,549 | +11.1% | 1.95% |
| Washington County | $167,931 | +10.0% | 1.87% |
| Johnson County | $184,345 | -3.5% | 1.24% |
| Peoria County | $166,288 | +5.8% | 2.24% |
| Brown County | $166,141 | +1.6% | 1.52% |
| Moultrie County | $185,755 | +7.2% | 1.8% |
Frequently asked questions
What is the average home price in Mercer County, IL?
The typical home value in Mercer County is $175,685 (Zillow Home Value Index, September 2026).
How much do you need to earn to buy a house in Mercer County?
About $56,600 a year for the typical home with 20% down at a 7.11% 30-year rate.
What is the property tax rate in Mercer County?
The median effective rate is 1.96% of home value a year (Census ACS 2024 5-year estimates).