The latest S&P Cotality Case-Shiller report shows Chicago leading all major U.S. metros for the sixth consecutive month, with home prices rising 6.7% year over year in August 2026 — more than three times the 2.1% national gain. But for Chicago homeowners and buyers, the numbers cut two ways: nationally, home values fell in real terms for the 15th straight month as August's 3.4% inflation rate outpaced price growth, and the report itself reflects purchase decisions made months ago, not today's market.
Chicago's Leading Home Price Growth in August 2026
Chicago's 6.7% year-over-year increase was the strongest of any metropolitan area tracked by the 20-City Composite, according to the index data compiled by S&P Dow Jones Indices. It marked the sixth consecutive month at the top of the rankings, a striking run of leadership for a market long viewed as one of the country's more affordable big metros.
The national picture was far more subdued. The U.S. National Home Price NSA Index rose 2.1% year over year in August, accelerating modestly from a 1.9% gain in July. Month over month, the national index slipped slightly — 0.02%, per the report — while the 20-city composite's monthly figure fell 0.4% after holding flat in July. The gap between the strongest and weakest markets was nearly nine percentage points, a divergence that underscores how differently regional housing markets are moving in 2026.
Chicago's Home Price Growth: A City-by-City Comparison
Ranking the major metros by their August 2026 year-over-year growth shows where Chicago stands relative to its peers. The ranking draws on the Case-Shiller 20-City Composite data, with the national index included for context, and reflects each metro area as defined by the index — not neighborhood-level results.
| Rank | Metro area / index | Year-over-year change |
|---|---|---|
| 1 | Chicago | +6.7% |
| 2 | New York | +6.2% |
| 3 | Cleveland | +4.3% |
| — | U.S. National Index (average) | +2.1% |
| 18 | Denver | −0.8% |
| 19 | Las Vegas | −1.3% |
| 20 | Seattle | −2.0% |
Reading the table, the pattern is a clear East-West divide: older, relatively affordable metros in the Midwest and East — Chicago, New York, Cleveland — posted the strongest gains, while West Coast and Mountain West markets such as Seattle, Las Vegas, and Denver recorded annual declines. Seattle's 2.0% drop was the steepest for the third consecutive month. Chicago's premium over the national average — about 4.6 percentage points — is the clearest single measure of its outperformance.
