DuPage County, IL Cap Rates by Neighborhood

County-Wide Gross Yield: A Starting Point, Not an Answer

DuPage County's computed gross yield sits at 5.72%, derived from a $2,140/mo median rent against a $449,185 median home price. That number is real but nearly useless for underwriting a specific deal. The county spans from Hinsdale, where median listing prices touch $1,169,500, down to Eola, where the median runs about $185,000. A single blended yield across that range obscures what matters: which segment and submarket generates a defensible net cap rate after DuPage's high property taxes, and which is purely an appreciation play where current cash flow is structurally negative.

The spread between submarkets is where the investment thesis lives. A workforce rental in western DuPage and a luxury single-family in Hinsdale have almost nothing in common on a yield basis despite sharing a county line.

Gross Yield by Submarket and Asset Segment

The brief supports three distinct price tiers across named locations.

High-End Single-Family: Hinsdale, Naperville, Oak Brook

Hinsdale's median listing price of $1,169,500 sits 2.6 times the county median. Unless rents scale proportionally, which they do not in luxury SFR, gross yields in this tier fall well below the 5.72% county average. At $2,140/mo median rent, a $1,169,500 acquisition implies a gross yield of about 2.2%. Even adjusting upward for luxury rent premiums, this segment is not an income play. Investors in Hinsdale, Naperville, and Oak Brook are buying 4.29% annual price appreciation in a supply-locked market, with housing unit stock growing at 2.2% against a national pace of 7.4%. That appreciation thesis is clean, but the current cash flow is not.

Workforce Rental: Western DuPage (Aurora, West Chicago, Eola)

The western edge of the county is a different calculation. At an Eola median of about $185,000 and county-wide median rents of $2,140/mo, gross yields here can reach 13–14% at the top of the range before any expenses. That ceiling is theoretical; actual market rents in lower-cost DuPage zip codes run below the county median. But even at $1,600–$1,800/mo on a $185,000–$220,000 purchase, gross yields land in the 8.7%–11.7% range, which creates real room to cover DuPage's property tax load and still produce net cash flow. This segment also benefits from the Section 8 voucher pool: DuPage's 2-bedroom Fair Market Rent of $1,761 is the second-highest of all 102 Illinois counties, expanding the effective tenant base for workforce rentals.

Attached Product: Condos and Townhomes County-Wide

Fall 2024 data shows attached home median prices jumped 7% year-over-year while closed sales fell more than 16%. Price appreciation is outrunning transaction volume, which means sellers are holding price expectations the market only occasionally meets. For investors, this creates selective opportunities at negotiated discounts, though the 99.1% sale-to-list ratio on the broader market signals that distressed pricing is rare. Gross yields on attached product track close to the 5.72% county average, making property tax management the swing factor on net returns.

Neighborhood Comparison Table

Property Tax: The Net Cap Rate Killer

This is the number that separates DuPage from lower-tax suburban markets. Effective rates average 1.95%–2.2% of market value depending on municipality, with Lisle and Bloomingdale trending at the high end. Work the math on a representative mid-county acquisition:

At $449,185 purchase price, 2.0% effective rate: $8,984 in annual property taxes, or $749/mo.

Set against $2,140/mo gross rent, taxes alone consume 35% of gross income before insurance, maintenance, vacancy, or management. Assuming a conservative 45%–50% expense ratio including taxes, net operating income drops to roughly $1,070–$1,177/mo, producing a net cap rate of about 2.9%–3.1% at the county median price. That is thin.

At the workforce end, $185,000 purchase with a 2.0% tax rate produces $3,700 in annual taxes, or $308/mo. Against $1,700/mo gross rent, taxes represent 18% of gross income. Net cap rates in this tier can realistically reach 5.5%–7.0% after full expenses, which crosses most investors' minimum yield thresholds.

DuPage County is also subject to Illinois PTELL, which caps annual levy increases at the lesser of CPI or 5%. That structural ceiling provides some underwriting predictability. But the 2024 tax year data shows average tax bills still increased 4.61% year-over-year despite a rate drop, because assessed values rose 9.2% county-wide. Landlords should model 4%–5% annual property tax bill growth in any hold-period projection.

Cap Rate Compression: Prices Are Outrunning Rent Growth

The ZHVI shows 4.29% home price appreciation year-over-year. The brief does not provide a matching ZORI growth rate, but the directional signal is clear: median listing prices moved from $380,000 in February 2025 to $469,000 by July 2025, a 23% jump in asking prices over five months in a supply-locked market. Gross yields are compressing for buyers entering now.

The 99.1% sale-to-list ratio and 52-day average days on market confirm that sellers are not discounting. Investors competing for the same limited inventory as owner-occupants in a market where new listings fell 16.3% year-over-year have little negotiating room. Every point of price appreciation above rent growth tightens the gross yield and pushes net cap rates lower.

Flood Risk Adjustment to Net Yield

DuPage's effective FEMA FIRM dates to August 2019, making it six years old. The county is actively developing updated hydrology and hydraulics modeling for a multi-year FIRM revision. Properties near the DuPage River, Salt Creek, and East Branch corridors carry reclassification risk in either direction.

For acquisition underwriting, any property adjacent to these corridors should carry an elevation certificate cost in due diligence, and buyers should stress-test for National Flood Insurance Program premium requirements that could add $1,000–$3,000 annually to operating costs. On a sub-$250,000 workforce rental, that drag moves net cap rates by 40–120 basis points. On a high-end property with thinner cash flow to start, flood insurance costs are less material in dollar terms but the valuation impact of a SFHA reclassification at resale is harder to quantify.

Cap Rate Outlook

The structural supply constraint is the most durable feature of this market. At 2.2% housing unit growth against a national rate of 7.4%, DuPage is not building its way out of a supply shortage. CMAP projects population growth to 1,081,213 by 2050 from about 930,000 today, adding roughly 16% more demand against flat supply. That combination supports rent growth and limits cap rate decompression over a long hold.

The wildcard is the Illinois BUILD Act announced in February 2026. If statewide ADU preemption language (SB 4060) passes, it opens value-add conversion opportunities across DuPage's predominantly single-family municipalities for the first time. Westmont is already ahead of the curve, having legalized ADUs in August 2025. Investors who identify SFR parcels suitable for ADU additions before statewide preemption passes could capture a real step-up in gross rent on existing assets, compressing their effective cap rate basis.

The People Over Parking Act's elimination of parking minimums within half a mile of a transit hub further reduces per-unit development cost near Metra and Pace BRT corridors. As $860 million in new RTA/NITA funding stabilizes Metra service connecting DuPage to Chicago's CBD, transit-adjacent parcels carry a real demand premium that supports rent growth above the county average.

Net cap rates at the county median are thin today, and property taxes will not improve that picture. The income case concentrates in western DuPage workforce rentals and in ADU-enabled value-add plays. The appreciation case is county-wide.

Model your specific deal with our investment property calculator to stress-test tax growth assumptions and flood-risk adjustments against your target submarket.