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 4.76 percent on 24 September 2025, compared to 4.73 on 23 September 2025.
Sample. There are 7,945 records overall in the daily series presented in the chart above. The time span covered by the series extends from January 1990 to September 2025.
History. Take a look at a few statistics we calculated on the whole sample: the yield reached its minimum of 0.99 percent on 9 March 2020; it reached a maximum of 9.18 on 24 September 1990; it had an average value of 4.74.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-09-22 | 4.77 |
| 2025-09-23 | 4.73 |
| 2025-09-24 | 4.76 |
Heads-up. One of the advantages of using our web site is that we give you rich metadata. Find it below to delve deeper into the characteristics of the indicators that you use in your research.
Not for investment purposes. Data disseminated on this web site are not not supposed to be used for investment purposes or as a basis for financial-decision making. Users should consult professional advice and do their own independent due diligence before taking any financial risk.
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 | 5687 | 2003-01-02 | 2025-09-24 |
| 7-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5687 | 2003-01-02 | 2025-09-24 |
| 10-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5687 | 2003-01-02 | 2025-09-24 |
| 20-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 5296 | 2004-07-27 | 2025-09-24 |
| 30-year real par yield on Treasuries (percentage points; constant maturity; real) - United States - Department of the Treasury - Daily | 3902 | 2010-02-22 | 2025-09-24 |