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County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in Richland County, Illinois

Richland County has an effective property tax rate of 1.58%. On the median home value of $112,000, that's roughly $1,769 per year. Median household income is $62,455.

Effective Property Tax Rate1
1.58%
median tax $1,769 ÷ median home $112,000
Median Home Value1
$112,000
owner-occupied
Median Household Income1
$62,455
per-capita $33,126
Est. Annual Tax on Median Home1
$1,769
at 1.58% 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.

MetricRichland CountyIllinois (state context)
Effective property tax rate11.58%1.80%
Median home value1$112,000—
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 Richland County, IL

Property owners in Richland County, Illinois, pay an effective tax rate of 1.579%, which falls below the statewide median of 1.804%. That places the county at 74th out of Illinois's 102 counties when ranked by rate. Compared with the national median of 0.794%, however, Richland County's rate is roughly double. A median home value of $112,000 produces a median annual real-estate tax bill of $1,769, set against a median household income of $62,455 and per-capita income of $33,126. Olney, the county's largest city, sits within this tax landscape. The picture that emerges is a county that offers a lighter property tax load than much of Illinois but still taxes real estate considerably more heavily than the country as a whole, a pattern common across the state rather than unique to this county.

Frequently asked questions

What is the property tax rate in Richland County, IL?
The effective rate is 1.58% — meaning the median tax bill equals about 1.58% of the median home value.
How much are property taxes on a median home?
On the median home ($112,000), the estimated annual bill is about $1,769.
Is Richland 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 Richland 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 Richland 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.