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Talk to a Specialist →The Metro's Lowest-Tax County
DuPage County's effective property tax rate runs roughly 1.8–2.2% of market value — the lowest range of any county covered in this series. On a $400,000 home, that works out to about $7,200–$8,800 a year, several hundred to over a thousand dollars less annually than Cook, Will, McHenry, Kane, or Lake at the same home value.
DuPage assesses residential property at 33.33% of market value, the same ratio used by every collar county except Cook (which assesses at 10%). The lower effective rate here isn't a different assessment method — it comes from the underlying tax levies (school districts, municipalities, park districts) running lower on average than in the counties farther out or with different school funding structures. Confirm the specific levy stack for any address with a local agent or the DuPage County Assessor before assuming the countywide average applies exactly to one parcel.
The same four Illinois senior relief programs apply here as statewide: the Senior Citizens Assessment Freeze (freezes EAV for 65+ households under $65,000 income; annual re-application required; does not freeze the rate), the Senior Citizens Real Estate Tax Deferral (a 5%-interest state loan, repaid at sale or through the estate), the Circuit Breaker/Property Tax Relief Grant (up to $700/year, income-based), and the General Homestead Exemption (roughly $6,000 off EAV, worth $200–$600/year, applied automatically once primary residence is established).
DuPage's 55+ Communities
DuPage's seven communities cluster in Naperville, Downers Grove, Oak Brook, and Winfield — all inner-ring suburbs closer to the city than most of the other counties in this guide.
| Community | City | Homes | HOA | Tax Rate |
|---|---|---|---|---|
| Carillon Club | Naperville | 778 | $300/mo | ~2.0% |
| Cameo | Downers Grove | 400 | $350/mo | ~2.0% |
| Briarwood Lakes | Oak Brook | 199 | $700/mo | ~2.0% |
| Ashwood Crossing | Naperville | 103 | $250/mo | ~2.0% |
| Trillium Farm | Winfield | 84 | $250/mo | ~2.0% |
| Forest Gate | Oak Brook | 78 | $750/mo | ~2.0% |
| Hampton Park | Naperville | 62 | $275/mo | ~2.0% |
Carillon Club shares its name with unrelated communities in Kane, Will, and Lake counties — different builders and HOA structures entirely. Note also the two Oak Brook communities, Briarwood Lakes and Forest Gate, carry the highest HOA dues of any communities in this entire six-county series ($700–750/mo), which is its own trade-off worth weighing against the low tax rate.
Why DuPage's Rate Stays Lower
Geographically, DuPage sits immediately west of Cook County, closer to the city than Kane, Will, Lake, or McHenry. I-88 (the Reagan Memorial Tollway) runs through the county connecting Naperville and points west back toward the city, while I-355 (the Veterans Memorial Tollway) links DuPage north-south toward Will County. Metra's Union Pacific West and BNSF Line both serve DuPage, giving reasonably direct rail access toward downtown Chicago — useful for visiting family or the occasional trip in, though confirm specific station distances for any given community rather than assuming.
Winters in DuPage are the same Chicago-area winters as everywhere in this guide — genuine snow, genuine cold, real seasonal maintenance. Being closer to the city doesn't reduce the snow; it just shortens the drive to everything else.
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What DuPage Costs Instead
The trade-off for DuPage's tax advantage shows up in two places: home prices and HOA dues. This county sits closer to the city, in wealthier, more built-out suburbs like Naperville and Oak Brook, where home values — and by extension entry prices into these communities — tend to run higher than in Kane, Will, or McHenry. HOA dues here also run higher on average than most of the other counties: Briarwood Lakes and Forest Gate both charge $700+/mo, well above anything in Lake, Kane, Will, or McHenry County's lineup (aside from Lake Barrington Shores' all-inclusive $450–600/mo).
| County | Effective Rate | Annual Tax (Low) | Annual Tax (High) |
|---|---|---|---|
| DuPage | 1.8–2.2% | $7,200 | $8,800 |
| McHenry | 2.0–2.4% | $8,000 | $9,600 |
| Cook | 2.0–2.5% | $8,000 | $10,000 |
| Will | 2.0–2.5% | $8,000 | $10,000 |
| Kane | 2.2–2.6% | $8,800 | $10,400 |
| Lake | 2.2–2.8% | $8,800 | $11,200 |
The DuPage Buyer
DuPage tends to fit buyers who prioritize proximity to the city and a lower tax bill over minimizing HOA fees or home price, and who are comfortable in established, higher-cost suburbs like Naperville and Oak Brook. It's a strong fit for buyers who want the shortest realistic drive back into Chicago for family, medical specialists, or O'Hare, among the counties in this guide. It's a weaker fit for buyers whose top priority is a low HOA or a large-lot, rural feel — those buyers should look at Lake County's Saddlebrook Farms or the smaller McHenry County communities instead.
Other Counties Worth Comparing
DuPage's tax advantage isn't free, so it's worth comparing against the rest of the metro before committing:
- Lake County Corridor Guide
- Kane County Corridor Guide
- Will County Corridor Guide
- McHenry County Corridor Guide
- Suburban Cook County Corridor Guide
DuPage vs. a Sun Belt Move
DuPage already posts the metro's most favorable property tax math, which strengthens the case for staying in Illinois altogether: zero state tax on retirement income, paired with the lowest property tax rate in this guide. For many retirees, that combination outperforms a move to a "low-tax" Sun Belt state once you account for the income tax side — run your own numbers before assuming otherwise.