Lake County Property Records
Lake County property records are held by the Chief County Assessment Office in Waukegan. With more than 714,000 residents, Lake County is one of the largest counties in Illinois and has a high volume of property data on file. You can search Lake County property records through the online tax portal or visit the assessor in person at the county building. The office tracks assessed values, ownership details, exemptions, and parcel data for all land in the county. Township assessors across Lake County handle the first-level valuations, and the Chief County Assessor reviews them for accuracy. If you need to look up a tax bill, check a value, or find who owns a parcel, the Lake County property records system can help.
Lake County Quick Facts
Lake County Chief Assessor Office
The Chief County Assessment Office is the main place to go for property records in Lake County. This office sits on the 7th floor of the county building in Waukegan. Staff there can help you with assessed values, exemption forms, and questions about your tax bill. They also give technical support to the township assessors who set initial property values across Lake County.
You can reach the Lake County Chief County Assessor by phone at (847) 377-2050 or by email at assessor@lakecountyil.gov. The office is open Monday through Friday from 8:30 a.m. to 5:00 p.m. Walk-ins are welcome during those hours. If you are not sure which township assessor handles your area, this office can point you in the right direction. Under 35 ILCS 200/, the Chief County Assessment Officer must make sure that all property in the county is assessed at 33 1/3 percent of fair market value. That standard applies to every parcel in Lake County.
The Chief County Assessor page on the Lake County website gives an overview of the office and its role in managing property records for the county.
From this page you can find links to exemption forms, township assessor contacts, and other tools for looking up Lake County property records.
| Office | Lake County Chief County Assessment Office |
|---|---|
| Address | 18 N. County Street, 7th Floor Waukegan, IL 60085 |
| Phone | (847) 377-2050 |
| assessor@lakecountyil.gov | |
| Hours | Monday - Friday, 8:30 a.m. - 5:00 p.m. |
Note: The County Clerk and Treasurer offices are in the same building, which makes it easy to handle tax payments and recording needs in one trip.
Search Lake County Property Records Online
Lake County runs its own property tax portal where you can search records for free. The site at tax.lakecountyil.gov lets you look up any parcel by address, owner name, or Property Index Number. Results show the assessed value, tax amount, payment status, and exemptions on the property. This is the fastest way to pull up property records in Lake County without leaving your home.
The Lake County Property Tax Portal is the main online tool for searching property records in this part of Illinois.
Use this portal to search by PIN, address, or owner name and view full property records for any parcel in Lake County.
When you search, the system pulls up a page with all the key data for that parcel. You can see the land value, building value, and total assessed value. The tax bill section shows what was billed and what has been paid. If the owner has any exemptions, those show up on the record too. Most searches take just a few seconds. The portal covers all townships in Lake County, so it does not matter if the parcel is in Libertyville, Vernon, or Waukegan Township. All the data feeds into one system for Lake County property records.
Lake County Property Records Details
A property record in Lake County holds a lot of data tied to that parcel. The PIN is the key number that links everything together. It stays with the land no matter who owns it. The record shows the current owner, their mailing address, and the legal description of the parcel. It also lists the lot size, building type, and year built if that data is on file.
Under the Illinois Property Tax Code, every parcel in Lake County gets assessed at 33 1/3 percent of its fair market value. The township assessor sets that value first. Then the Chief County Assessor checks it. If the numbers look off across a township, the county can apply an equalization factor to bring values in line. Property records in Lake County also track the equalized assessed value, which is the number used to figure your tax bill. The tax rate set by local taxing districts gets multiplied by that value to produce the final bill. Lake County property records show all of these numbers so you can see exactly how your bill was calculated.
Exemptions play a big part in Lake County property records. The General Homestead Exemption cuts $6,000 from your assessed value. The Senior Citizens Homestead Exemption removes another $5,000 if you are 65 or older. There is also a Senior Citizens Assessment Freeze that locks your base value in place, as long as your income falls under the state limit. Each of these shows up on the property record if the owner has applied and been approved in Lake County.
Note: You can check if exemptions are applied to a parcel by searching for it on the Lake County tax portal.
Lake County Clerk and Treasurer
Two other offices in the same building work with property records in Lake County. The County Clerk keeps tax extension files and calculates the final tax rates. The Treasurer sends out tax bills and collects payments. Both sit on the first floor of 18 N. County Street in Waukegan.
The Lake County Clerk is in Room 101 and can be reached at (847) 377-2404. If you have questions about how tax rates are set or need a copy of your tax extension, this is the office to call. The Lake County Treasurer is in Room 102 at (847) 377-2323. They handle all tax payments, redemption of sold taxes, and can tell you the current balance on any tax bill in Lake County. Both offices keep records that tie back to the property data managed by the assessor. Together, these three offices form the core of the Lake County property records system.
Find Your Lake County Assessor
Lake County has multiple township assessors. Each one handles the parcels within their township. If you need to talk to the person who actually set the value on your property, you need to reach your township assessor, not the county office. The Chief County Assessor page has a full list of all township assessors in Lake County with their contact details.
The Contact Your Assessor page on the Lake County site helps you find the right township assessor for your property.
Pick your township from the list and you will see the assessor name, phone number, address, and office hours for that area of Lake County.
Township assessors do the hands-on work of visiting sites, reviewing sales data, and setting values for property records in their part of Lake County. Under 35 ILCS 200/, they must reassess all real property on a quadrennial cycle. That means a full review happens every four years, with yearly adjustments in between. If you think your assessed value is wrong, the first step is to call your township assessor. They can explain how the value was set and walk you through the appeal process. Appeals in Lake County go to the Board of Review, and you typically have 30 days after your assessment notice to file one.
Note: The Board of Review is a separate body from the assessor and handles all formal property tax appeals in Lake County.
Get Lake County Property Records
There are a few ways to get property records in Lake County. Online is the quickest. Use the tax portal to pull up any parcel and view its data on screen. You can print the page for your own use. Most basic searches are free. No account or login is needed.
In person is another option. Go to the Chief County Assessment Office on the 7th floor at 18 N. County Street in Waukegan. Staff can look up parcels, print records, and answer questions about assessed values or exemptions. Bring the address or PIN of the property you want. The office is open weekdays from 8:30 a.m. to 5:00 p.m. You can also call (847) 377-2050 or email assessor@lakecountyil.gov if you have a quick question about Lake County property records. For detailed or bulk requests, it may be best to visit in person so staff can help you narrow down what you need.
- Online at tax.lakecountyil.gov for free parcel searches
- In person at 18 N. County Street, 7th Floor, Waukegan
- By phone at (847) 377-2050
- By email at assessor@lakecountyil.gov
Cities in Lake County
Lake County has many cities and villages. All property records for these areas are handled at the county and township level. Waukegan is the county seat and the largest city in Lake County. Other communities include Highland Park, Lake Forest, Mundelein, Gurnee, Libertyville, and Vernon Hills. Property records for all of these go through the Lake County assessment system.
Nearby Counties
These counties border Lake County. If you are searching for a property near a county line, make sure you have the right county before looking up records. The PIN will tell you which county the parcel belongs to.