US Treasury Average Interest Rates
The average interest rate the US government actually pays on each type of outstanding Treasury security - bills, notes, bonds, TIPS, FRNs, savings bonds, government-account series - monthly back to 2001. This is the *coupon cost of the debt stock*, distinct from market yields; pair it with us-federal-debt (the debt level) to read the government's interest burden over time. One clean row per (security × month). Public domain.
- Source
- TREASURY_RATES
- Licence
- Redistributable open data
- Quality
- QC clean · 0 failures
- Format
- Apache Parquet + dictionary
Safe to train on
Built only from a named, redistributable official source under a documented open licence - not scraped web data. No copyright grey zone, no personal data. Ships machine-readable Croissant metadata (ML Commons - loads in Hugging Face / Kaggle / Google), an AI training-licence manifest documenting source, licence and provenance for your model's data governance, and a machine-readable data dictionary (drop it into an agent / RAG prompt so the model knows every column) - all inspectable before you buy.
What's included
- Average interest rate paid on each Treasury security type, monthly, 2001→present
- Bills, notes, bonds, TIPS, FRNs, savings bonds, government-account series
- The coupon cost of the debt stock - NOT market yields; join us-federal-debt for interest burden
- One clean row per (security × month); macro / fixed-income analysis
- Public domain (U.S. Treasury Fiscal Data) - free commercial reuse & resale
- Source: U.S. Department of the Treasury - Fiscal Data (Average Interest Rates)
Schema
| Column | Type | Description | Filled | Distinct |
|---|---|---|---|---|
| month | str | Month (YYYY-MM, with security_type + security the primary key) | 100.0% | 306 |
| security_type | str | Security type (Marketable, Non-marketable, Interest-bearing Debt) | 100.0% | 3 |
| security | str | Security (Treasury Bills, Notes, Bonds, TIPS, …) | 100.0% | 22 |
| avg_interest_rate_pct | float | Average interest rate (%) | 100.0% | 2,690 |
Sample & preview
Every purchase ships as Apache Parquet with a data dictionary and the full QC report. A free sample (first rows + schema) is downloadable here - confirm fit before you buy. Source: TREASURY_RATES (redistributable open data; attribution passes through - see our Licence).
Don't trust screenshots - drop the sample into your notebook right now.
import pandas as pd df = pd.read_parquet("us-treasury-avg-interest-rates_sample.parquet") df.info() # typed columns, gap-aware, ready to join⬇ Download free Parquet sample or CSV for Excel
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