Ottawa, Lasalle County, Illinois Property Taxes

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

Median Ottawa, IL effective property tax rate: 3.56%, significantly higher than the national median of 1.02%, but lower than the Illinois state median of 2.35%.
Median Ottawa, IL home value: $112,635
Median annual Ottawa, IL tax bill: $3,488, $1,088 higher than the national median property tax bill of $2,400.

How are property taxes in LaSalle calculated?

Property taxes in Ottawa, IL 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 Ottawa’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Ottawa, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

Ottawa, Lasalle County, Illinois Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

3.56%

Estimate Property Tax Bill

$4,010

$3,721

Ownwell’s Ottawa Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Ottawa with just two data points. By entering your property's estimated assessed value, our calculator applies Ottawa’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 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 LaSalle County. For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across Ottawa, Lasalle County, Illinois

Local government entities determine property tax rates, which can differ significantly within a state. This variation occurs because each county calculates its budgetary needs to provide public services and divides this by the total value of all taxable properties within its jurisdiction. This calculation establishes the property tax rate. Although votes and legal stipulations play a role in determining tax rates and budgets, this is essentially the annual process.

In Ottawa, located in LaSalle County, Illinois, the effective property tax rate stands at 3.56%, which is considerably higher than the national median of 1.02%. This places Ottawa among the regions with the highest property tax rates in the state, as the county's tax rate is also 3.56%. The financial implications for property owners in Ottawa are significant, given that the national median property tax bill is $2400. When compared to other cities in Illinois, Ottawa's property tax rate is notably high, underscoring the importance of understanding local tax dynamics and seeking potential relief through appeals or exemptions.

Property Tax Rates Across Ottawa, Lasalle County, Illinois

Source: Ownwell

2.19%

3.11%

4.03%

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 Ottawa Tax Rate

3.56%

Median Effective Lasalle County Tax Rate

3.01%

Median Effective Illinois Tax Rate

2.35%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Ottawa, Lasalle County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
61350	2.24%	2.87%	3.56%	3.56%	3.56%

Source: Ownwell

Property Tax Assessment Values Across Ottawa, Lasalle County, Illinois

When examining property taxes in Ottawa, Illinois, 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 LaSalle County appraisal district 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 LaSalle 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 Ottawa. For example, the median home price in Ottawa is $112,635, with tax bills ranging significantly across the county. Zip code 61350 has the highest median home price at $112,635.

Property Tax Assessment Values Across Ottawa, Lasalle County, Illinois

Source: Ownwell

$47,830

$136,637

$225,444

Median Ottawa Market Value

$112,635

Median Lasalle County Market Value

$83,415

Median Illinois Market Value

$194,700

Median United States Market Value

$235,294

Property Tax Assessment Values Across Ottawa, Lasalle County, Illinois

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
61350	$51,291	$73,130	$112,635	$152,478	$228,139

Source: Ownwell

Property Tax Bills Across Ottawa, Lasalle County, Illinois

In Ottawa, located in LaSalle County, IL, property tax bills are determined by the assessed value of a home multiplied by the local tax rate. The assessed value is a percentage of the market value, reflecting the home's worth. Factors such as recent sales, improvements, and neighborhood values influence this assessment. Homeowners in Ottawa face a median property tax bill of $3,488, which is higher than the national median of $2,400. The tax bill can range significantly, with the 25th percentile at $2,349 and the 90th percentile reaching $6,783. These variations can significantly impact homeowners' finances, especially when compared to the national median property tax rate of 1.02%. Ownwell offers services to help homeowners potentially reduce their property tax bills by appealing assessments and identifying applicable exemptions. By analyzing the property's assessed value and ensuring it aligns with market conditions, Ownwell assists in mitigating tax burdens, providing homeowners with potential savings and peace of mind.

Property Tax Bills Across Ottawa, Lasalle County, Illinois

Source: Ownwell

$1,329

$3,289

$5,248

Median Ottawa Tax Bill

$3,488

Median Lasalle County Tax Bill

$2,340

Median Illinois Tax Bill

$4,715

Median United States Tax Bill

$2,400

Property Tax Bills Across Ottawa, Lasalle County, Illinois

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
61350	$1,361	$2,349	$3,488	$4,965	$6,783

Source: Ownwell