LaSalle County Property Records
LaSalle County property records are held by the Assessments Office in Ottawa. This large north-central Illinois county covers over 1,100 square miles and has about 109,000 residents spread across farms, small towns, and a handful of larger communities. You can search LaSalle County property records online through the county property search tool or contact the office directly for help. Township assessors set values at the local level, and the county Assessments Office reviews those figures to keep them fair. If you need to find a parcel value, check who owns a piece of land, or see what exemptions are on a property, the LaSalle County property records system has what you need.
LaSalle County Quick Facts
LaSalle County Assessments Office
The LaSalle County Assessments Office is at 707 East Etna Road in Ottawa. This is the main office for property records in LaSalle County. Staff handle assessed values, exemption forms, and coordination with the many township assessors who set values at the local level. LaSalle County has a large number of townships given its size, and each one has its own assessor who does the on-the-ground work of visiting properties and setting values.
You can reach the office by phone at (815) 434-8233. Hours are standard weekday business hours. Under 35 ILCS 200/, the county Assessments Office must make sure all property in LaSalle County gets assessed at 33 1/3 percent of fair market value. Because the county has a mix of residential, commercial, industrial, and farm parcels, the work of keeping values accurate is complex. The office works closely with each township assessor to review data and apply equalization factors when needed. The LaSalle County Assessments page has more details about the office and how to reach staff for help with property records.
The LaSalle County Assessments page gives an overview of the office, its role, and the resources it provides for property records in the county.
From this page you can find links to the property search tool, township assessor contacts, and exemption information for LaSalle County.
| Office | LaSalle County Assessments |
|---|---|
| Address | 707 East Etna Road Ottawa, IL 61350 |
| Phone | (815) 434-8233 |
Note: LaSalle County has many township assessors, and the county office can help you figure out which one handles your property.
Search LaSalle County Property Records Online
LaSalle County has an online property search tool that anyone can use for free. The search at lasallecountysa.org/propertysearch lets you look up parcels by address, owner name, or Property Index Number. Results show assessed values, land and building details, and tax data for parcels across LaSalle County. No account is required.
Each result page shows the PIN, assessed value at 33 1/3 percent of fair market value, lot size, and structure type. If exemptions are on file, those show up in the record too. The search covers every township in LaSalle County, from Peru and Streator to the smaller rural areas. This tool is the fastest way to pull up property records in LaSalle County without visiting the office in person. Most lookups take just a few seconds, and you can view or print the data right from your screen.
LaSalle County also has a township assessor network that plays a big role in how property records work. The Township Assessor Contact Information page lists every township assessor in the county with their phone number and address. If you have a question about how your specific property was valued, your township assessor is the person to call first. They handle the day-to-day work of setting values in their part of LaSalle County.
LaSalle County Property Record Details
A property record in LaSalle County ties to a PIN that stays with the land. The PIN does not change when the property sells. Each record shows the owner name, mailing address, legal description, lot dimensions, building type, and year built if that data is available. The assessed value appears at 33 1/3 percent of fair market value, and the equalized assessed value is listed too.
The equalized assessed value is what matters for your tax bill. Local taxing districts in LaSalle County, including schools, fire protection, park districts, library districts, and the county itself, each set their own rate. Those rates get applied to the equalized assessed value to produce the total tax amount. LaSalle County property records break this down so you can see what each district charges. The Illinois Department of Revenue oversees the equalization process at the state level and can apply a multiplier if county values fall short of the 33 1/3 percent target across the board.
Farm land makes up a large part of LaSalle County. Agricultural parcels use a different valuation method under 35 ILCS 200/ that bases the assessed value on soil productivity rather than market price. This means farm land in LaSalle County typically carries a much lower assessed value per acre than residential or commercial parcels. The distinction between farm and non-farm property is an important part of how LaSalle County property records work.
Property Tax Exemptions in LaSalle County
Exemptions lower the taxable value of your home and show up in your LaSalle County property record once approved. You apply through the Assessments Office or your local township assessor. Several types exist under Illinois law, and each has its own rules.
The General Homestead Exemption is the most common in LaSalle County. It reduces the assessed value by $6,000 for owner-occupied homes. The Senior Citizens Homestead Exemption provides an extra $5,000 off for those age 65 and older. If you want to keep your assessed value from going up as the market rises, the Senior Citizens Assessment Freeze can lock it in place, but you need to meet income caps set by the state. The Disabled Persons Homestead Exemption gives a $2,000 cut, and the Disabled Veterans Homestead Exemption varies by the disability rating. Under 35 ILCS 200/, all of these exemptions apply to LaSalle County property records in the same way they apply across Illinois.
The state provides guidance on exemptions through the Illinois Department of Revenue website. If you are not sure which exemptions you might qualify for, the LaSalle County Assessments Office can walk you through the options.
The Department of Revenue site has information on property tax exemptions, assessment standards, and county contacts across Illinois.
How LaSalle County Assessments Work
The assessment process in LaSalle County starts on January 1 each year. That is the lien date. It is the point in time the county uses to set who owns the property and what it is worth. Township assessors then review values over the next several months. They look at sales data, building permits, and property changes to update their numbers for LaSalle County.
Illinois uses a quadrennial assessment cycle. A full reassessment takes place every four years. In the off years, township assessors still adjust values to keep up with market shifts. Assessment notices go out in the summer or fall. If you disagree with your assessed value, you have about 30 days to file a complaint with the LaSalle County Board of Review. The board can raise, lower, or keep the value the same after hearing your case.
After the Board of Review finishes, the Assessments Office sends the final numbers to the County Clerk. The Clerk uses those figures, combined with local tax rates, to produce the tax bills. Property taxes in Illinois are paid in arrears. The bill you pay in 2025 covers the 2024 assessment year. This is standard across the state and applies to all LaSalle County property records under the Illinois Property Tax Code.
Get LaSalle County Property Records
The online search tool is the quickest way to access property records in LaSalle County. Go to the property search page, type in what you know, and the record comes up fast. Most basic lookups cost nothing.
If you want to visit in person, the Assessments Office is at 707 East Etna Road in Ottawa. Staff can look up parcels, print records, and answer questions about values and exemptions. Bring the address or PIN of the property you need. You can also call (815) 434-8233 for quick questions over the phone. For questions about a specific township, use the township assessor contact list on the county website to reach the right person directly. The LaSalle County system has many moving parts because of its size, but the Assessments Office ties it all together and can help you get to the right place for whatever property records you need.
- Online at lasallecountysa.org/propertysearch for free lookups
- In person at 707 East Etna Road, Ottawa
- By phone at (815) 434-8233
- Township assessors for questions about specific property values
Nearby Counties
These counties border LaSalle County. Because LaSalle County is one of the largest in Illinois by area, it shares borders with several neighbors. If a property is near a county line, check the PIN to make sure you are searching in the right county.