US 20-City Case-Shiller House Price Index (NSA)
US 20-City Case-Shiller House Price Index (NSA) stood at 350.36 in Jul 2026, according to FRED (Federal Reserve Bank of St. Louis). It is one of the indicators in the House prices table (Value · Monthly), with a complete series running from Jan 2000 to Jul 2026. The complete series with an interactive chart, free to download.
This indicator in the House prices table
| Indicator | 07-2026 | 06-2026 | 05-2026 | 04-2026 | 03-2026 | 02-2026 | 01-2026 | 12-2025 | 11-2025 | 10-2025 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Case-Shiller — NSA | |||||||||||
| 20-City Composite | 350.36 | 350.39 | 348.89 | 345.63 | 342.14 | 338.48 | 336.9 | 337.19 | 337.47 | 337.41 | |
| National | 337.31 | 336.91 | 335.58 | 333.15 | 330.41 | 327.82 | 326.76 | 327.03 | 327.85 | 328.23 |
Understanding US 20-City Case-Shiller House Price Index (NSA)
The twenty-city composite records price changes for previously owned single-family homes in major US metropolitan areas. Prices are derived from successive purchase pairs of the same asset, rather than from the average price of all homes sold during the month. Its scope is broader than the ten-city composite but remains an urban measure, and cannot replace the national series; new construction, condominiums, and properties without matching transaction pairs are not fully reflected.
Because it is not seasonally adjusted, the index path may fluctuate according to annual home-buying cycles, weather conditions, and holiday schedules. Year-on-year comparisons help assess price momentum more reliably, while month-on-month comparisons are primarily useful when placed alongside adjusted data. Index levels should be distinguished from monetary values: a higher score merely indicates that relative prices have risen since the base period. Newly published data may be revised as additional transactions are processed.
Frequently asked questions
- How does the twenty-city composite differ from the ten-city basket?
- This basket covers additional metropolitan areas, providing a broader picture while still not representing the entire US housing market.
- Does the index account for newly built homes?
- New homes typically lack a repeat-sales history and are therefore not fully represented in this methodology.
- Can the index point change even if typical home prices remain flat?
- Yes. Geographic weights, transaction pair quality, and newly added records can all impact the aggregate result.