Lake County, IL property tax

Census ACS 2023 5-year estimates · updated 2026-09-20

The median effective property tax rate in Lake County is 2.68%, above the Illinois median of 2.07% and above the national median of 0.98%. The median homeowner pays $8,743 a year on a home worth $326,600.

Effective rate: 2.68%
Median annual bill: $8,743
Median home value: $326,600
Rank in Illinois: 1of 102

Effective property tax rate: Lake County compared with Illinois and the United States

Median annual bill divided by median home value, Census ACS 2023 5-year estimates.

Estimated annual bill by home value

At the county median effective rate of 2.68%, before exemptions. Jurisdictions inside the county differ; use the estimator for a specific home value and exemption.
Home value	Estimated bill	Per month
$200,000	$5,360	$447
$300,000	$8,040	$670
$400,000	$10,720	$893
$500,000	$13,400	$1,117
$750,000	$20,100	$1,675
$1,000,000	$26,800	$2,233

Estimate for your home value

Property tax rates by city in Lake County, 2024

For tax year 2024, billed in 2025, the average residential tax at each city's rate in Lake County ran from $4,012 in Park City to $21,190 in Deerfield (West Deerfield Twp). Across all property in the county, the average tax rate was 8.64 per $100 of equalized assessed value, down from 9.07 in 2023.

Illinois rates apply to taxable value, not market value, so a rate of 7 means $7 per $100 of taxable value. The effective rate column turns each tax into a share of market value, which is the figure to compare between cities.

From the Illinois Department of Revenue, Property Tax Statistics, Table 10, tax years 2024 and 2023. Each row is a city within one township or road district; a city spanning several has a row for each. Average home value is the average residential market value IDOR lists for that township, the same for every city in it. Average tax is that township's average residential taxable value at the city's aggregate rate: the combined rate, per $100 of taxable value, of the county, township, city, school and other districts IDOR lists for the city. Effective rate is that tax divided by the market value. Highest tax first. A blank 2023 cell means no matching 2023 row. Where IDOR lists more than one rate for the same city and township, for parts served by different districts, each rate is its own row and none is compared with 2023.
City	Township or road district	Average tax 2024	Average tax 2023	Effective rate	Aggregate rate	Average home value
Deerfield	West Deerfield Twp	$21,190	$20,283	2.52%	9.4787	$840,772
Deerfield	Moraine Twp	$19,812	$18,269	2.80%	9.4751	$707,807
Highland Park	West Deerfield Twp	$19,302	$18,926	2.30%	8.6344	$840,772
Highland Park	Moraine Twp	$18,141	$17,100	2.56%	8.6758	$707,807
Highwood	Moraine Twp	$17,539	$16,517	2.48%	8.3880	$707,807
Bannockburn	West Deerfield Twp	$16,222	$15,407	1.93%	7.2566	$840,772
Lake Bluff	Shields Twp	$16,003		1.98%	7.2719	$809,808
Lake Bluff	Shields Twp	$15,721		1.94%	7.1440	$809,808
Riverwoods	West Deerfield Twp	$15,689	$14,945	1.87%	7.0179	$840,772
Buffalo Grove	Vernon Twp	$15,614		2.82%	10.8031	$554,005
Buffalo Grove	Vernon Twp	$14,429		2.60%	9.9834	$554,005
Buffalo Grove	Vernon Twp	$14,199		2.56%	9.8236	$554,005
Long Grove	Vernon Twp	$14,128	$13,498	2.55%	9.7748	$554,005
Lincolnshire	Vernon Twp	$13,324	$12,736	2.41%	9.2186	$554,005
Mundelein	Libertyville Twp	$13,294	$13,022	2.78%	10.0230	$477,378
Vernon Hills	Vernon Twp	$13,284	$12,860	2.40%	9.1911	$554,005
Waukegan	Libertyville Twp	$13,101	$12,611	2.74%	9.8770	$477,378
Lake Forest	Moraine Twp	$13,064	$12,379	1.85%	6.2475	$707,807
Round Lake Park	Fremont Twp	$12,551	$11,739	2.98%	11.5520	$421,561
Vernon Hills	Libertyville Twp	$12,190	$11,688	2.55%	9.1902	$477,378
Indian Creek	Vernon Twp	$12,129	$11,847	2.19%	8.3920	$554,005
Kildeer	Ela Twp	$12,120	$11,662	2.14%	8.0708	$565,556
Hawthorn Woods	Ela Twp	$12,073	$11,716	2.13%	8.0394	$565,556
Barrington Hills	Cuba Twp	$11,977	$11,357	2.22%	8.1839	$539,638
Lake Zurich	Ela Twp	$11,882	$11,416	2.10%	7.9123	$565,556
Tower Lakes	Cuba Twp	$11,685	$11,229	2.17%	7.9846	$539,638
Mettawa	Libertyville Twp	$11,570	$11,039	2.42%	8.7230	$477,378
Barrington	Ela Twp	$11,186	$10,917	1.98%	7.4486	$565,556
Mundelein	Fremont Twp	$11,057	$10,514	2.62%	10.1766	$421,561
Waukegan	Warren Twp (Lake)	$10,614	$10,216	3.04%	11.9165	$349,015
Libertyville	Libertyville Twp	$10,579	$10,124	2.22%	7.9760	$477,378
Deer Park	Ela Twp	$10,577	$10,437	1.87%	7.0432	$565,556
N Barrington	Cuba Twp	$10,526	$10,069	1.95%	7.1928	$539,638
Riverwoods	Vernon Twp	$10,490	$9,891	1.89%	7.2576	$554,005
Wadsworth	Newport Twp	$9,417	$8,979	2.73%	10.4408	$344,374
Green Oaks	Libertyville Twp	$8,984	$8,514	1.88%	6.7736	$477,378
Gurnee	Warren Twp (Lake)	$8,730	$8,359	2.50%	9.8010	$349,015
Old Mill Creek	Newport Twp	$8,386	$7,848	2.44%	9.2979	$344,374
Lindenhurst	Lake Villa Twp	$7,561	$7,192	2.67%	10.3040	$283,665
Round Lake Bch	Lake Villa Twp	$7,447		2.63%	10.1493	$283,665
Round Lake Bch	Lake Villa Twp	$7,447		2.63%	10.1493	$283,665
Grayslake	Avon Twp	$7,183	$6,757	2.67%	11.4919	$269,031
Round Lake Bch	Avon Twp	$7,019	$6,621	2.61%	11.2302	$269,031
Wauconda	Wauconda Twp	$6,717	$6,550	2.43%	9.1576	$276,125
Lake Villa	Lake Villa Twp	$6,670		2.35%	9.0902	$283,665
North Chicago	Waukegan Twp	$6,639	$6,201	3.15%	13.0670	$210,471
Lake Villa	Lake Villa Twp	$6,627		2.34%	9.0311	$283,665
Round Lake	Avon Twp	$6,406		2.38%	10.2491	$269,031
Third Lake	Avon Twp	$6,393	$5,970	2.38%	10.2286	$269,031
Round Lake	Avon Twp	$6,355		2.36%	10.1680	$269,031
Island Lake	Wauconda Twp	$6,307	$6,150	2.28%	8.5985	$276,125
Zion	Zion Twp	$6,203	$5,943	2.80%	12.9509	$221,800
Hainesville	Avon Twp	$6,067	$5,504	2.25%	9.7062	$269,031
Round Lake Hts	Avon Twp	$5,936	$5,385	2.21%	9.4966	$269,031
Winthrop Harbor	Benton Twp (Lake)	$5,926	$5,645	2.42%	10.5489	$244,897
Volo	Wauconda Twp	$5,882	$5,757	2.13%	8.0191	$276,125
Port Barrington	Wauconda Twp	$5,779	$5,636	2.09%	7.8792	$276,125
Antioch	Antioch Twp	$5,748	$5,506	2.46%	9.7480	$233,335
Beach Park	Benton Twp (Lake)	$5,723	$5,449	2.34%	10.1867	$244,897
Fox Lake	Grant Twp (Lake)	$5,499	$5,146	2.11%	8.4413	$260,799
Lake Barrington	Wauconda Twp	$5,352	$5,005	1.94%	7.2971	$276,125
Waukegan	Waukegan Twp	$4,542	$4,343	2.16%	8.9394	$210,471
Park City	Waukegan Twp	$4,012	$3,637	1.91%	7.8962	$210,471

Lake County compared with Illinois and the US

Area	Effective rate	Median bill	Median home value
Lake County	2.68%	$8,743	$326,600
Illinois median	2.07%	$5,189	$250,500
United States median	0.98%	$2,969	n/a

Lake County compared with neighboring counties

Lake County borders 6 counties. Ranked from lowest to highest median effective rate, it places 7 of 7, the highest in its area.

Counties sharing a border with Lake County, from the Census Bureau county adjacency file; figures from Census ACS 2023 5-year estimates, lowest effective rate first.
County	Effective rate	Median bill	Median home value
Berrien County, MI	1.11%	$2,357	$211,400
Allegan County, MI	1.13%	$2,799	$247,000
Van Buren County, MI	1.29%	$2,444	$189,900
Kenosha County, WI	1.69%	$4,180	$247,800
Cook County	1.98%	$6,053	$305,200
McHenry County	2.49%	$7,153	$286,900
Lake County	2.68%	$8,743	$326,600

Illinois statewide: General Homestead Exemption of up to $10,000 of equalized assessed value in Cook County, $8,000 in the counties contiguous to Cook, and $6,000 elsewhere. The Senior Citizens Homestead Exemption adds $8,000 in Cook and the contiguous counties or $5,000 elsewhere, and a senior assessment freeze is available under an income limit.

Due dates and payment

Illinois statewide: two installments, typically due June 1 and September 1 (Cook County: March 1 and August 1, often delayed). Confirm the local schedule with the Lake County tax office.

Appealing your assessment

30 days from the township assessment notice; a second appeal to the county Board of Review follows. Bring recent sales of comparable homes, photos of condition issues, and any error in the record such as square footage or lot size. How to appeal, step by step.

How Illinois assesses value

33 1/3% of fair market value statewide; Cook County classifies property and assesses residential at 10%, then a state equalization factor is applied. Full Illinois rules, exemptions and deadlines.

Rates and medians: U.S. Census Bureau, ACS 2023 5-year estimates, tables B25103 and B25077. Effective rate is median taxes paid divided by median owner-occupied home value. Places: Census place by county reference file. Illinois cities and county rates: Illinois Department of Revenue, Property Tax Statistics, 2024 and 2023. Neighbors: Census county adjacency file. Rules: Illinois Department of Revenue, Property Tax Exemption Information (PIO-74).

Frequently asked questions

What is the property tax rate in Lake County, IL?

The median effective property tax rate in Lake County is 2.68% of home value, above the Illinois median of 2.07% and above the national median of 0.98%. The median homeowner pays $8,743 a year on a median home value of $326,600 (Census ACS 2023 5-year).

How much is property tax on a $400,000 house in Lake County?

About $10,720 per year at the county's median effective rate of 2.68%, before exemptions. The exact bill depends on the city, school district and special districts that serve the parcel, so treat this as a planning estimate.

When are property taxes due in Lake County?

Illinois statewide: two installments, typically due June 1 and September 1 (Cook County: March 1 and August 1, often delayed). Check the Lake County tax office for the exact local dates.

How do I appeal a property tax assessment in Lake County?

30 days from the township assessment notice; a second appeal to the county Board of Review follows. Full Illinois rules are on the Illinois page.

How does Lake County compare with the rest of Illinois?

Lake County ranks 1 of 102 Illinois counties by effective rate. The Illinois median is 2.07% and the median bill is $5,189.