30-year par yield on Treasuries (percentage points; constant maturity; nominal) - 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 par yield on 30-year US government bonds was 5.25 percent on 14 August 2026, versus 5.21 on 13 August.
Sample. The daily series displayed in the chart has 8,167 observations overall. The series covers the time range extending from January 1990 to August 2026.
History. Here are some summary statistics we calculated on the whole sample: the yield recorded a bottom of 0.99 percent on 9 March 2020; it reached its maximum of 9.18 on 24 September 1990; it had an average value of 4.74.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-08-12 | 5.24 |
| 2026-08-13 | 5.21 |
| 2026-08-14 | 5.25 |
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Series Metadata
| Field | Value |
|---|---|
| Description | 30-year yield US Treasury par yield curve |
| Country | United States |
| Economic concept | Interest rate |
| Data type | Constant-maturity nominal 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 | 5909 | 2003-01-02 | 2026-08-14 |
| 7-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5909 | 2003-01-02 | 2026-08-14 |
| 10-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5909 | 2003-01-02 | 2026-08-14 |
| 20-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5518 | 2004-07-27 | 2026-08-14 |
| 30-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 4124 | 2010-02-22 | 2026-08-14 |