Local costs · Illinois

What it costs to own a home in Johnson County, Illinois

The real property-tax rate, risk-adjusted insurance, and honest closing costs for Johnson County — with the all-in monthly cost of the area’s median-priced home and the income it takes to carry it comfortably.

The headline numbers

Property tax rate1.24%of home value per year · below the Illinois average 1.80% · national 0.92%
US Census, ACS 2024 5-year · approximate (top-coded)
Home insurance$1,900/yrrange $1,240–$2,760 at the Illinois median home value · county risk-adjusted
Closing costs$5,500–$9,300buyer’s estimate on the $280,700 median home
All-in monthly$2,367/momedian home, 20% down, 6.43% 30-yr rate (as of 2026-07-02)
A household income of about $129,153 makes the $280,700 median home here comfortable by our math — housing under about 28% of take-home pay with room left over for everyday spending. How we compute this.

Run these numbers with your income →

The “median home” here is the Illinois statewide median owner-occupied value ($280,700, US Census ACS 2024 1-year) — no county-level median is available in our data, so it is labeled as a state figure. The all-in monthly uses the real-life basis: loan payment $1,409, property tax $290, insurance $158, maintenance $234 (1%/yr rule of thumb), and utilities $275 (a placeholder, not yet sourced). With 20% down there is no mortgage insurance.

Local risk flags

No natural-hazard flags for Johnson County in the FEMA National Risk Index — no covered peril rates Relatively High or Very High here. That does not mean zero risk; check the specific address’s flood zone before you buy.

Closing costs, in detail

Total transfer/recording tax $421: buyer's customary share $0, seller's customary share $421. Illinois state transfer tax: $281 (seller-paid); County transfer tax: $140 (seller-paid). Chicago levies an additional city transfer tax (see Cook County adder).

Transfer & recording tax
On the $280,700 median home, the buyer’s customary share is about $0, with roughly $421 customarily paid by the seller. Only the buyer’s share is counted in the closing-cost estimate above.
Title insurance & settlement
Illinois uses competitive (filed) rates. Estimated $1,735–$2,348 on this home. Modeled title insurance + settlement (national declining-rate curve, ~0.73% of price at this level). Not a state-promulgated rate.
Lender and origination
$1,123–$2,246. Modeled as 0.5-1.0% of loan amount.
Appraisal, inspection, and reports
$900–$1,800. Flat buyer-paid diligence estimate.
Prepaids and escrow
$1,636–$2,533. Initial escrow deposit for taxes and insurance.

Frequently asked

What is the property tax rate in Johnson County, IL?
The effective property tax rate in Johnson County is 1.24% of home value per year (US Census, ACS 2024 5-year). That is lower than the Illinois average of 1.80% and higher than the national average of 0.92%.
How much is homeowners insurance in Johnson County?
A typical homeowners policy runs about $1,900 per year (range $1,240–$2,760) at the Illinois median home value of $280,700. This is a county-adjusted estimate scaled from the NAIC state average; a real quote depends on the home and coverage.
What are typical closing costs on a $280,700 home in Johnson County?
Estimated buyer closing costs run about $5,494–$9,327 on a $280,700 home — lender fees, title and settlement, the buyer's customary share of transfer and recording taxes, and prepaid taxes and insurance.
What income do you need to afford the median home in Johnson County?
A household income of about $129,153 per year makes the $280,700 median home here comfortable by our math — housing under about 28% of take-home pay with room left for everyday spending, assuming 20% down at this week's 6.43% 30-year rate.
What is the all-in monthly cost of the median home in Johnson County?
About $2,367 per month for the $280,700 median home with 20% down at 6.43% — the loan payment, property tax, home insurance, maintenance, and an estimated utilities figure.

Run your own numbers

These figures use the area median and a 20%-down example. Put in your own price, down payment, income, and debts to see whether it’s comfortable for you.

Open the calculator for Johnson County

More counties in Illinois

Adams CountyAlexander CountyBond CountyBoone CountyBrown CountyBureau CountyCalhoun CountyCarroll CountyAll 102 counties →

Sources & vintages

  • Property tax: US Census American Community Survey, county effective rate (ACS 2024 5-year). This ZIP spans multiple counties; using Johnson County.
  • Home insurance: NAIC state average premium (2022 · FEMA NRI December 2025), scaled by FEMA National Risk Index covered-peril risk; range modeled.
  • Median home value: US Census, Illinois statewide median owner-occupied value (ACS 2024 1-year) — used as a state-level stand-in for a county median.
  • Mortgage rate: Freddie Mac 30-year fixed weekly average via FRED, as of 2026-07-02.
  • Transfer taxes & title: researched state/local schedules; utilities and the household baseline are labeled placeholders.

Estimates, not advice, and not a Loan Estimate. Every number is computed from public data or our own math — see the methodology for how, and where the honest gaps are.