Chicago suburbs  ·  2020–2024 Census data

Westmont Property Tax
Rate & Typical Bill

Homeowners in Westmont, DuPage County, pay about 1.83% of their home's value in property tax each year. The median bill is $6,819.

Westmont, IL

Effective rate
1.83%
Median tax bill
$6,819
Median home value
$379,100
Owner-occupied homes
5,891
Rank in DuPage County (1 = highest)
22 of 30

DuPage County average: 1.89%

Estimated Yearly Tax by Home Value

At Westmont's typical rate of 1.83%. Exemptions lower the real bill.

Home valueProperty tax (estimate)
$250,000$4,568
$350,000$6,395
$450,000$8,222
$600,000$10,963
$800,000$14,618

Can You Deduct It?

A family with a $379,100 home in Westmont pays about $6,927 in property tax. With $120,000 of income they also pay about $5,940 in Illinois income tax, so their SALT deduction is $12,867 — under the $40,400 cap. That alone does not beat the $32,200 standard deduction for married couples; mortgage interest and charity decide the rest.

Run your own numbers

Compare Nearby Towns

TownCountyRateMedian bill
Clarendon HillsDuPage1.83%$10,000+
Downers GroveDuPage1.57%$7,227
HinsdaleDuPage1.64%$10,000+
Oak BrookDuPage1.22%$10,000+
WillowbrookDuPage1.54%$5,075
DarienDuPage1.76%$7,119

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Unofficial estimate, not a tax bill. Updated 2026-10-08.

Property Tax FAQ

What is the property tax rate in Westmont, IL?

Homeowners in Westmont pay a typical effective property tax rate of 1.83% of home value per year. The median annual bill is $6,819 and the median home value is $379,100 (U.S. Census ACS 2020–2024).

How much is property tax on a $400,000 home in Westmont?

About $7,309 per year at Westmont's typical rate of 1.83%. The homeowner exemption and other exemptions lower the actual bill.

Is property tax in Westmont higher than the DuPage County average?

Westmont's typical rate of 1.83% is lower than the DuPage County average of 1.89%.

Can I deduct property taxes paid in Westmont on my 2026 federal return?

Yes, if you itemize. For 2026, property tax plus Illinois income tax count toward the SALT deduction, capped at $40,400 ($20,200 if married filing separately) and reduced above $505,000 of income. Itemizing helps only if your total deductions beat the standard deduction: $32,200 married filing jointly, $16,100 single, $24,150 head of household.

Let a CPA Run Your Numbers

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