30-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily
This series is part of the dataset: US Treasury constant-maturity par yields (Department of the Treasury)
Download Full Dataset (.xlsx)Latest updates. According to data published by the US Treasury, the real par yield on 30-year US inflation-linked government bonds was 2.49 percent on 30 September 2025, compared to 2.47 on 29 September 2025.
Sample. The daily time series presented in the graph has a total of 3,906 data points. The time range covered by the series stretches from February 2010 to September 2025.
History. Here’s a quick look at a few descriptive statistics calculated on the full sample: the yield reached a trough of -0.59 percent on 3 December 2021; it recorded a maximum of 2.75 on 21 May 2025; it was equal on average to 1.07.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-09-26 | 2.51 |
| 2025-09-29 | 2.47 |
| 2025-09-30 | 2.49 |
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Series Metadata
| Field | Value |
|---|---|
| Description | 30-year real yield US Treasury par real yield curve |
| Country | United States |
| Economic concept | Interest rate |
| Data type | Constant-maturity real par yield |
| Deflation method | Not applicable |
| Seasonally adjusted | No |
| Rescaling | None |
| Frequency | Daily |
| Unit | Percentage points |
| Source | U.S. Department of the Treasury |
| Source type | Federal Administration |
| Data licence | Not copyrightable under U.S. law |
| Measure type | Interpolated level (constant maturity) |
Series in the same data set: Nominal yields
Series in the same data set: Real yields
| Series Name | Observations | Start Date | End Date |
|---|---|---|---|
| 5-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5691 | 2003-01-02 | 2025-09-30 |
| 7-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5691 | 2003-01-02 | 2025-09-30 |
| 10-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5691 | 2003-01-02 | 2025-09-30 |
| 20-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5300 | 2004-07-27 | 2025-09-30 |
| 30-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 3906 | 2010-02-22 | 2025-09-30 |