Johnson County, Illinois Property Taxes
Property Taxes in Johnson County, Illinois
Median Johnson County effective property tax rate: 2.08%, significantly higher than the national median of 1.02%.
Median Johnson County home value: $72,777
Median annual Johnson County tax bill: $1,260, lower than the national median property tax bill of $2,400.
How are property taxes in Johnson County calculated?
Property taxes in Johnson County are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Johnson County or another part of Johnson County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Johnson County, Illinois Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
2.08%
Estimate Property Tax Bill
$1,514
$1,405
How Does the Johnson County Property Tax Calculator Work?
Use this Johnson County property tax calculator to estimate your annual property tax bill. Enter your property’s assessed value and our calculator applies Johnson County’s median effective tax rate of 2.08% to generate your estimate.
Enter your property’s estimated assessed value — the figure the appraisal district assigns for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.
Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. Johnson County’s median tax rate is higher than the national median property tax rate of 1.02% and lower than the state median tax rate of 2.33%, with a median property tax bill of $1,260.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Johnson County.
Property Tax Rates Across Johnson County, Illinois
What Are Effective Property Tax Rates Across Johnson County?
Local government entities set tax rates, which vary widely across Johnson County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.
Below, compare Johnson County's effective property tax rate to other counties in Illinois or the U.S. median of 1.02%.
Johnson County's median effective rate stands at 2.08%, which is higher than the national median of 1.02%. Within Johnson County, the highest rate is found in CREAL SPRINGS at 2.33%, while CARBONDALE has the lowest at 1.55%.
These variations reflect differences in local school district levies, Special service areas (SSAs) assessments, and special district bonds — which compound the base county rate.
Our median effective property tax rate (tax bill Ă· assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Johnson County Tax Rate
2.08%
Our median effective property tax rate (tax bill Ă· assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Illinois Tax Rate
2.33%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Johnson County, Illinois
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Belknap | 0.63% | 1.50% | 2.06% | 2.44% | 3.13% |
| Buncombe | 1.13% | 1.72% | 2.14% | 2.41% | 2.41% |
| Carbondale | 0.93% | 1.27% | 1.55% | 2.22% | 2.38% |
| Creal Springs | 0.85% | 1.92% | 2.33% | 2.44% | 2.44% |
| Cypress | 1.07% | 1.80% | 2.19% | 2.37% | 2.86% |
| Goreville | 1.01% | 1.63% | 2.03% | 2.11% | 2.33% |
| Grantsburg | 0.77% | 1.46% | 2.03% | 2.44% | 2.46% |
| New Burnside | 0.63% | 1.37% | 1.99% | 2.36% | 2.48% |
| Ozark | 0.78% | 1.72% | 2.14% | 2.44% | 2.48% |
| Simpson | 0.97% | 1.50% | 2.02% | 2.36% | 2.38% |
| Tunnel Hill | 1.09% | 1.71% | 2.08% | 2.36% | 2.44% |
| Vienna | 1.04% | 1.78% | 2.16% | 2.44% | 2.44% |
Source: Ownwell
Property Tax Assessment Values Across Johnson County, Illinois
When examining property taxes in Johnson County, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Johnson County appraisal district estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Johnson County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of May.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Johnson County.
For example, the median tax bill in Johnson County is $1,260, with tax bills ranging significantly across the county. Goreville has the highest median home price at $102,537.
Median Johnson County Market Value
$72,777
Median Illinois Market Value
$227,888
Median United States Market Value
$235,294
Property Tax Assessment Values Across Johnson County, Illinois
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Belknap | $5,082 | $17,428 | $46,122 | $89,906 | $139,718 |
| Buncombe | $13,049 | $28,976 | $73,314 | $130,278 | $190,146 |
| Carbondale | $29,670 | $43,410 | $82,623 | $152,990 | $177,678 |
| Creal Springs | $11,950 | $24,000 | $55,254 | $125,794 | $221,821 |
| Cypress | $12,091 | $22,586 | $46,778 | $99,970 | $133,441 |
| Goreville | $12,000 | $33,666 | $102,537 | $186,702 | $259,695 |
| Grantsburg | $13,948 | $29,920 | $79,908 | $126,950 | $166,994 |
| New Burnside | $13,569 | $28,905 | $72,153 | $127,929 | $166,050 |
| Ozark | $11,940 | $23,079 | $61,833 | $115,616 | $169,358 |
| Simpson | $16,317 | $31,572 | $76,818 | $120,267 | $170,724 |
| Tunnel Hill | $15,454 | $33,754 | $79,800 | $144,850 | $206,135 |
| Vienna | $14,240 | $29,754 | $71,415 | $127,098 | $188,770 |
Source: Ownwell
Property Tax Bills Across Johnson County, Illinois
Property tax bills in Johnson County, Illinois are based on the assessed value of a home and the local tax rate set by taxing authorities. The bill is calculated by applying that rate to the property’s assessed market value, then adjusting for exemptions or other qualifying factors that may lower the amount owed. Because taxes are tied to value, homes with higher assessed values generally face larger bills, while lower-valued homes often pay less.
In Johnson County, the median home price is $72,777, and tax bills vary widely across homeowners. The 25th percentile tax bill is $479, while the 75th percentile reaches $2,518 and the 90th percentile climbs to $3,957. The highest median tax bill is $1,643 in Goreville, compared with $764 in Belknap. With the national median property tax rate at 1.02% and the national median property tax bill at $2,400, local bills can have a meaningful impact on household budgets.
Median Johnson County Tax Bill
$1,260
Median Illinois Tax Bill
$5,277
Median United States Tax Bill
$2,400
Property Tax Bills Across Johnson County, Illinois
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Belknap | $118 | $225 | $764 | $1,792 | $2,881 |
| Buncombe | $250 | $508 | $1,309 | $2,488 | $3,873 |
| Carbondale | $362 | $634 | $1,267 | $2,020 | $2,973 |
| Creal Springs | $128 | $314 | $1,147 | $2,458 | $4,562 |
| Cypress | $187 | $465 | $972 | $1,719 | $2,925 |
| Goreville | $201 | $503 | $1,643 | $3,229 | $5,193 |
| Grantsburg | $160 | $399 | $1,497 | $2,377 | $3,401 |
| New Burnside | $197 | $336 | $1,207 | $2,160 | $3,507 |
| Ozark | $194 | $397 | $977 | $2,176 | $3,291 |
| Simpson | $258 | $512 | $1,095 | $2,068 | $3,460 |
| Tunnel Hill | $204 | $573 | $1,328 | $2,723 | $4,143 |
| Vienna | $240 | $538 | $1,296 | $2,511 | $3,909 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | September 27 |
Links | |
|---|---|
| Johnson Tax Assessor | |
| Website | johnsonil.devnetwedge.com |