U.S. existing single-family home prices were up 1.9% year over year in July 2026, according to the S&P Cotality Case-Shiller U.S. National Home Price NSA Index. That is a nominal index change—not a promise that every home gained 1.9% in sale value. The release also reported consumer prices up 3.4% over the year and said home prices fell in real terms for the 14th consecutive month.
What the July 2026 Case-Shiller result means
The national index’s 1.9% annual increase compares July 2026 with July 2025. The annual rate was higher than June’s 1.6%, but the inflation comparison changes the interpretation: S&P Dow Jones Indices reported consumer prices up 3.4% year over year and described home prices as declining in real terms for 14 consecutive months. Real-term comparisons adjust nominal price growth for inflation; they do not measure any individual homeowner’s return or household-specific cost of living.
The result is from S&P’s July release, published September 29, 2026. The reference month is July, not September. S&P Dow Jones Indices’ July 2026 release provides the annual, monthly, composite and metro results.
Monthly movement: the adjustment matters
For July, the national index rose 0.12% from June without seasonal adjustment (NSA), and 0.29% on a seasonally adjusted (SA) basis. The release said seasonal factors weighed on the NSA result. These are monthly changes, distinct from the 1.9% year-over-year headline; do not compare them as though they describe the same period or calculation.
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For additional context on the level of the series, the Federal Reserve Bank of St. Louis’ ALFRED record for the September 29, 2026 vintage shows July readings of 337.306 NSA and 333.235 SA. Both are index points, with January 2000 set to 100—not dollar prices for a typical home. ALFRED’s NSA series record and SA series record identify the corresponding index series.
National growth masks different metro results
The annual rates for the 10-City and 20-City composites were 3.4% and 2.5%, respectively, up from 3.0% and 2.2% in June. The metro results varied considerably:
Rank #2
| Market | July 2026 change year over year |
|---|---|
| Chicago | +6.9% |
| New York | +5.8% |
| Cleveland | +4.2% |
| Denver | −1.1% |
| Las Vegas | −1.3% |
| Seattle | −1.6% |
These are selected examples from the release, not a ranking of every U.S. market. Detroit had no valid July update because transaction-data delays in Wayne County affected the available records. S&P said it would continue updating missing months when data permit. A missing reading is not evidence that Detroit prices were flat or falling.
What the Case-Shiller index measures
The national series is a composite of indices for the nine U.S. Census divisions and is intended to track changes in the total value of existing single-family housing stock. The release describes the indices as based on matched price pairs for thousands of individual houses using available arms-length sales data. The 10-City and 20-City composites are value-weighted averages of their respective metro indices. S&P Dow Jones Indices and Cotality publish the series under agreement.
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That scope matters: Case-Shiller is not a census of current listings, does not measure new-home prices, and does not report the value of a particular property. It is an index of price movement across its covered housing stock. S&P’s U.S. National NSA index page describes its coverage and notes that access to index data requires registration.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to use the figure in a personal-finance decision
- For national context: read 1.9% as nominal year-over-year growth in the national NSA index, not as a forecast or a guaranteed change in your home’s value.
- For inflation context: the release’s 3.4% CPI comparison indicates the index’s real decline as reported by S&P, but your own expenses and property value can differ.
- For a local view: use metro or more granular market data rather than assuming the national average applies where you live. Cotality says it offers index sets for ZIP codes, counties, metro areas and states; availability and access terms may vary.
- For trend comparisons: keep annual versus monthly periods and NSA versus SA figures separate. A short-term monthly move does not replace the annual comparison.
Because a national index smooths across many local markets and tracks a defined category of housing, it is best used as broad market context—not as a substitute for a local valuation or an estimate of your home equity.
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