Johnson County, Illinois property tax
The median homeowner in Johnson County, Illinois pays $1,952 a year in property tax on a home worth $148,200, an effective rate of 1.32%. The national effective rate is 0.98%.
What the rate means here
At 1.32%, Johnson County taxes property more heavily than the country as a whole, which sits at 0.98%. The rate is high and the housing is cheap, and those two facts are connected. The bill of $1,952 is what actually leaves a household's account, and it is the number worth comparing between places.
Inside Illinois it is among the lightest, ranking #95 of 97, against a statewide 2.07%. Lake County, in the same state, charges 2.68%. Comparing states on property tax hides differences like that, which is why this site publishes counties.
The median home costs 2.27 times the median household income of $65,203, against 3.86 nationally, which is a comfortable ratio by American standards. 84.66% of occupied homes are owned rather than rented, and cheap housing relative to income is usually why. This is a small rural county of 13,350 people. Five-year survey estimates for places this size carry wide margins of error, so treat the figures as approximate.
The rate is derived rather than quoted. How and why.
What that costs at different home values
Arithmetic at the county effective rate, before any exemption or assessment cap.
Housing and income
| Johnson County | Illinois | United States | |
|---|---|---|---|
| Effective property tax | 1.32% | 2.07% | 0.98% |
| Median tax bill | $1,952 | $5,189 | $2,969 |
| Median home value | $148,200 | $250,500 | $303,400 |
| Median gross rent | $634 | $1,227 | $1,348 |
| Median household income | $65,203 | $81,702 | $78,538 |
| Home price to income | 2.27× | 3.07× | 3.86× |
| Rent as share of income | 11.67% | 18.02% | 20.6% |
| Owner-occupied | 84.66% | 66.84% | 65.02% |
Source: U.S. Census Bureau, American Community Survey 2023 five-year estimates. Population 13,350.
Nearby counties of similar size
| County | Rate | Median bill | Home value |
|---|---|---|---|
| Ford County | 2.07% | $2,443 | $118,100 |
| Clay County | 1.62% | $1,523 | $94,300 |
| Washington County | 1.85% | $2,766 | $149,800 |
| White County | 1.39% | $1,388 | $100,100 |
| Mason County | 2.15% | $2,277 | $106,100 |
Johnson County property tax: common questions
What is the property tax rate in Johnson County, Illinois?
The effective rate is 1.32% of home value, from a median tax bill of $1,952 against a median home value of $148,200. That is 0.34 points above the national 0.98%.
How much is property tax on a $400,000 home in Johnson County?
Roughly $5,280 a year at the county effective rate of 1.32%.
Is Johnson County expensive compared with the rest of Illinois?
It ranks #95 of 97 Illinois counties by effective property tax rate, and #554 of 2,826 nationally. That is 0.75 points below the Illinois average of 2.07%.
What does housing cost in Johnson County?
The median home is worth $148,200 and median gross rent is $634 a month. Median household income is $65,203, which puts the home at 2.27 times annual income and rent at 11.67% of it.