Home›Property Tax›Illinois›Brown County
County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in Brown County, Illinois

Brown County has an effective property tax rate of 1.52%. On the median home value of $150,300, that's roughly $2,291 per year. Median household income is $67,917.

Effective Property Tax Rate1
1.52%
median tax $2,291 ÷ median home $150,300
Median Home Value1
$150,300
owner-occupied
Median Household Income1
$67,917
per-capita $26,202
Est. Annual Tax on Median Home1
$2,291
at 1.52% effective rate

What you'll pay, at a glance

Property taxes are the largest local tax most homeowners pay. The effective rate measures the real tax bill as a share of home value — a more useful number than the nominal “mill rate,” because assessment practices vary county to county.

MetricBrown CountyIllinois (state context)
Effective property tax rate11.52%1.80%
Median home value1$150,300—
State income tax3top rate 4.95%top rate 4.95%
State sales tax38.98% combined8.98% combined

How this is calculated

The effective property tax rate is the median real-estate tax bill divided by the median home value — both for owner-occupied homes, from the U.S. Census Bureau's American Community Survey (ACS 5-year estimates)1. Median income is also from the ACS1. Federal and state income-tax figures use IRS2 and Tax Foundation3 data.

About Brown County, IL

Home prices in Brown County, Illinois sit well below many parts of the country, with a median value of $150,300, and the property tax picture here is comparatively gentle for buyers watching their budgets. The county's effective rate of 1.524% lands beneath Illinois's statewide median of 1.804%, and it ranks 80th out of 102 counties on that measure. A household earning the median income of $67,917 would owe roughly $2,291 a year in real-estate taxes on a median-priced home, while per-capita income comes in at $26,202. Nationally, though, the median effective rate is just 0.794%, so buyers moving from elsewhere may still notice the difference. Mount Sterling, the largest of the county's towns, along with Timewell and Versailles, anchors a market where lower purchase prices help offset that tax load.

Frequently asked questions

What is the property tax rate in Brown County, IL?
The effective rate is 1.52% — meaning the median tax bill equals about 1.52% of the median home value.
How much are property taxes on a median home?
On the median home ($150,300), the estimated annual bill is about $2,291.
Is Brown County's rate high or low?
Compare it to the state median of 1.80% and the national average near 1.1%.
How does the effective rate differ from my mill rate?
A mill rate is the nominal levy per $1,000 of assessed value. The effective rate reflects what you actually pay after exemptions and assessments — it's the median tax bill as a share of median home value, so it better predicts your real cost.
Will a reassessment raise my tax bill?
Not necessarily. If your home's assessed value rises, your bill can go up, but only if the mill rate and exemptions stay flat. Contact the Brown County assessor's office to review your current assessment.
Can I appeal my property tax assessment?
Yes. Most counties allow an appeal when you believe the assessed value exceeds the market value. File with the Brown County assessor within the local deadline, typically with comparable sales as evidence.
Sources
[1] U.S. Census Bureau — ACS 5-Year (2023) — Median home value (B25077), median real-estate taxes (B25103), median household income (B19013), per-capita income (B19301).
[2] IRS — Statistics of Income — County income, AGI, and real-estate taxes paid.
[3] Tax Foundation — State income, sales, corporate, and estate/inheritance tax rates.