DuPage County Property Tax Guide for 55+ Buyers | Lowest Rates in Chicago Metro

DuPage County's effective residential property tax rates of 1.8–2.2% are the lowest of any collar county in the Chicago market. On a $400,000 home, that translates to $7,200–$8,800/year — roughly $1,000–$3,000 less than the same home in Lake County. The market knows this: DuPage County commands higher purchase prices than comparable communities in Will or Kane County precisely because buyers are willing to pay more upfront to reduce ongoing tax obligations.

The DuPage premium is real and quantifiable: A $350K home in DuPage generates roughly $6,300–7,700/year in property tax. An identical home in Lake County generates roughly $7,700–9,800/year. Over 10 years that gap is $14,000–21,000 — enough to offset a meaningful purchase price premium. Whether DuPage is actually cheaper depends entirely on the specific price differential between communities you are comparing.

DuPage Effective Tax Rate by Home Value

Purchase Price	Annual Tax (1.8%)	Annual Tax (2.0%)	Annual Tax (2.2%)	Monthly (2.0%)
$250,000	$4,500	$5,000	$5,500	$417
$320,000	$5,760	$6,400	$7,040	$533
$400,000	$7,200	$8,000	$8,800	$667
$480,000	$8,640	$9,600	$10,560	$800
$550,000	$9,900	$11,000	$12,100	$917

DuPage County assesses at 33.33% of market value. Effective rates vary by municipality — Naperville and Downers Grove are generally at the lower end; some smaller townships run slightly higher.

DuPage vs. Neighboring Counties — Same Home Price Comparison

County	Eff. Rate	Annual Tax on $380K Home	Monthly	vs. DuPage (2.0%)
DuPage	~2.0%	$7,600	$633	—
Will	~2.3%	$8,740	$728	+$1,140/yr
Kane	~2.4%	$9,120	$760	+$1,520/yr
McHenry	~2.2%	$8,360	$697	+$760/yr
Lake	~2.5%	$9,500	$792	+$1,900/yr

55+ Communities in DuPage County

Carillon Club — Naperville778 homes · HOA ~$300/mo

Cameo — Downers Grove~400 homes · HOA ~$350/mo (utilities incl.)

Briarwood Lakes — Oak Brook199 homes · HOA ~$700/mo (all-inclusive)

Forest Gate — Oak Brook78 homes · HOA ~$750/mo (all-inclusive)

Ashwood Crossing — Naperville103 homes · HOA ~$250/mo

Trillium Farm — Winfield84 homes · HOA ~$250/mo

Hampton Park — Naperville62 homes · HOA ~$275/mo

Senior Freeze in DuPage County

DuPage County's SCAFP deadline is typically July 1st. Apply through the DuPage County Supervisor of Assessments at dupageco.org or call (630) 407-5858. DuPage County has an online application portal and processes applications efficiently. The Senior Homestead Exemption reduces EAV by approximately $5,000 and is applied automatically once established. Stack both programs for maximum benefit.

Interested in DuPage County 55+ Communities?

Connect with a DuPage County buyer agent for current listings, tax history on specific homes, and senior exemption guidance.

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