A county average can identify a question about speed or pricing, but it cannot set an offer or predict the outcome for a specific property.
Cook, DuPage, and Lake Counties had price-drop shares within 0.64 percentage points of one another in May 2026. Their shares going off market within two weeks differed by almost 12 points.
That combination shows why one negotiating headline is incomplete.
Price cuts and speed describe different events
A price drop concerns an active listing whose asking price was reduced. The two-week measure concerns homes that reached contract quickly.
Similar price-drop rates do not require similar contract speed. The properties, price ranges, locations, and timing behind each county average can differ.
Above-list does not describe every sale
Average sale-to-final-list ratios were about 101.3% to 101.5%. Roughly half of sales closed above final list in each county.
Those results do not say every buyer paid above asking. They also omit concessions, credits, repairs, and the difference between original and final asking price.
Narrow the geography before acting
Cook, DuPage, and Lake Counties contain many markets. A county result cannot be relabeled for Chicago, Elmhurst, Hinsdale, Glen Ellyn, Western Springs, Clarendon Hills, or any one property.
Use the county signal to ask for direct active, pending, and recent closed comparables. The property-level evidence should control the decision.
Source and method: Redfin county market tracker archive, all residential, 30-day, not seasonally adjusted, May 1 through May 31, 2026. Read the full county study for definitions, exact metrics, and historical limits.