Adams County, Illinois Property Taxes

Name: Property Tax Bills Across Adams County, Illinois
Creator: Ownwell
License: https://creativecommons.org/licenses/by-nc/4.0/

Median Adams County effective property tax rate: 2.23%, significantly higher than the national median of 1.02%.
Median Adams County home value: $88,290
Median annual Adams County tax bill: $1,937, $463 lower than the national median property tax bill of $2,400.

How are property taxes in Adams County calculated?

Property taxes in Adams 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 Quincy or another part of Adams County, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

Adams County, Illinois Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

2.23%

Estimate Property Tax Bill

$1,969

$1,827

Ownwell’s Adams County Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Adams County with just two data points. By entering your property's estimated assessed value, our calculator applies Adams County’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a more precise calculation for your property tax obligations. This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Adams County. For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across Adams County, Illinois

Local government entities set tax rates, which can vary widely within a state. Annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate. While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Adams County's effective property tax rate to other counties in Illinois or the U.S. median property tax rate. With a median property tax rate of 2.23%, Adams County stands significantly above the national median rate of 1.02%. Within Illinois, Adams County's rate is among the highest, with Mendon having the highest rate at 2.51%. On the other hand, Quincy shares the same rate as Adams County, highlighting the consistency within the region. These figures reflect the local government's approach to funding essential services through property taxes. Understanding this context can help property owners in Adams County make informed decisions about their property tax appeals and exemptions.

Property Tax Rates Across Adams County, Illinois

Source: Ownwell

2.10%

2.31%

2.51%

Our median effective property tax rate (tax bill ÷ 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 Adams County Taxx Rate

2.23%

Median Effective Illinois Taxx Rate

2.35%

Median Effective United States Tax Rate

0.99%

Property Tax Rates Across Adams County, Illinois

City	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
Augusta	N/A	N/A	N/A	N/A	N/A
Barry	N/A	N/A	N/A	N/A	N/A
Camp Point	N/A	N/A	N/A	N/A	N/A
Clayton	N/A	N/A	N/A	N/A	N/A
Columbus	N/A	N/A	N/A	N/A	N/A
Fowler	N/A	N/A	N/A	N/A	N/A
Golden	N/A	N/A	N/A	N/A	N/A
La Prairie	N/A	N/A	N/A	N/A	N/A
Liberty	N/A	N/A	N/A	N/A	N/A
Lima	N/A	N/A	N/A	N/A	N/A
Loraine	N/A	N/A	N/A	N/A	N/A
Mendon	2.17%	2.51%	2.51%	2.55%	2.55%
Payson	N/A	N/A	N/A	N/A	N/A
Plainville	N/A	N/A	N/A	N/A	N/A
Quincy	1.90%	2.23%	2.23%	2.23%	2.23%
Ursa	2.32%	2.35%	2.36%	2.36%	2.45%

Source: Ownwell

Property Tax Assessment Values Across Adams County, Illinois

When examining property taxes in Adams 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 Adams County Board of Review 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 Adams 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 Adams County.

For example, the median tax bill in Adams County is $1,972, with tax bills ranging significantly across the county. Quincy has the highest median home price at $90,270.

Property Tax Assessment Values Across Adams County, Illinois

Source: Ownwell

$57,150

$104,745

$152,340

Median Adams County Market Value

$88,290

Median Illinois Market Value

$194,700

Median United States Market Value

$244,900

Property Tax Assessment Values Across Adams County, Illinois

City	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
Augusta	N/A	N/A	N/A	N/A	N/A
Barry	N/A	N/A	N/A	N/A	N/A
Camp Point	N/A	N/A	N/A	N/A	N/A
Clayton	N/A	N/A	N/A	N/A	N/A
Columbus	N/A	N/A	N/A	N/A	N/A
Fowler	N/A	N/A	N/A	N/A	N/A
Golden	N/A	N/A	N/A	N/A	N/A
La Prairie	N/A	N/A	N/A	N/A	N/A
Liberty	N/A	N/A	N/A	N/A	N/A
Lima	N/A	N/A	N/A	N/A	N/A
Loraine	N/A	N/A	N/A	N/A	N/A
Mendon	$30,144	$43,095	$57,150	$72,690	$80,766
Payson	N/A	N/A	N/A	N/A	N/A
Plainville	N/A	N/A	N/A	N/A	N/A
Quincy	$26,031	$52,058	$90,270	$157,575	$236,469
Ursa	$11,496	$19,560	$76,845	$93,728	$112,395

Source: Ownwell

Property Tax Bills Across Adams County, Illinois

Property tax bills in Adams County, IL, are calculated based on the assessed value of the property, which is a percentage of the property's market value. The local tax rate is then applied to this assessed value to determine the annual tax bill. Various factors, such as the property's location, size, and improvements, influence the assessed value. In Adams County, the median property tax bill is $1,972, with the highest in Quincy and the lowest in Mendon at $1,415. These figures are below the national median property tax bill of $2,400, making it relatively affordable for homeowners. However, the tax bill can vary significantly, as seen with the 25th percentile at $1,119 and the 90th percentile reaching $4,680. Homeowners need to consider these variations when budgeting for annual expenses. Understanding how these factors interact can help homeowners anticipate changes in their property tax bills and manage their financial planning more effectively.

Property Tax Bills Across Adams County, Illinois

Source: Ownwell

$1,415

$2,301

$3,186

Median Adams County Tax Bill

$1,937

Median Illinois Tax Bill

$4,715

Median United States Tax Bill

$2,690

Property Tax Bills Across Adams County, Illinois

City	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
Augusta	N/A	N/A	N/A	N/A	N/A
Barry	N/A	N/A	N/A	N/A	N/A
Camp Point	N/A	N/A	N/A	N/A	N/A
Clayton	N/A	N/A	N/A	N/A	N/A
Columbus	N/A	N/A	N/A	N/A	N/A
Fowler	N/A	N/A	N/A	N/A	N/A
Golden	N/A	N/A	N/A	N/A	N/A
La Prairie	N/A	N/A	N/A	N/A	N/A
Liberty	N/A	N/A	N/A	N/A	N/A
Lima	N/A	N/A	N/A	N/A	N/A
Loraine	N/A	N/A	N/A	N/A	N/A
Mendon	$763	$1,057	$1,415	$1,649	$1,990
Payson	N/A	N/A	N/A	N/A	N/A
Plainville	N/A	N/A	N/A	N/A	N/A
Quincy	$580	$1,141	$1,972	$3,272	$4,776
Ursa	$274	$461	$1,796	$2,115	$2,560

Source: Ownwell

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