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 stood at 3.09 percent on 18 September 2026, compared to 3.04 on 17 September 2026.
Sample. The daily series shown in the chart has 4,148 observations overall. The span of time covered by the series is from February 2010 to September 2026.
History. Take a look at a few simple statistics calculated on the whole sample: the yield averaged 1.16 percent; it hit a minimum of -0.59 on 3 December 2021; it recorded its maximum of 3.09 on 16 September 2026.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-09-16 | 3.09000 |
| 2026-09-17 | 3.04000 |
| 2026-09-18 | 3.09000 |
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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
Discover the other time series included in this data set.
Nominal yields
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 | 5933 | 2003-01-02 | 2026-09-18 |
| 7-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5933 | 2003-01-02 | 2026-09-18 |
| 10-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5933 | 2003-01-02 | 2026-09-18 |
| 20-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5542 | 2004-07-27 | 2026-09-18 |
| 30-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 4148 | 2010-02-22 | 2026-09-18 |