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What is the Total National Debt?

National Debt: Strictly speaking, the national debt is the total of federal, state, and local debt. But people often talk about the debt of the US federal government as the “national debt.”

In end of FY 2015 the national debt was “guesstimated” to be $21.7 trillion, including federal $18.2 trillion, state $1.15 trillion, and local $1.9 trillion.

Also, see Federal Debt, State Debt, and Local Debt.

Recent US Total National Debt

Chart D.11t: Recent US National Debt

Chart D.12t: Recent US National Debt as Percent GDP

Public Debt in the United States is principally the debt of the federal government.

In 2005 federal debt was about 60 percent of GDP, state government debt was about 6 percent of GDP and local government debt was about 10 percent of GDP.

But in the last ten years the federal debt has almost doubled to 103 percent GDP, while state government debt has stayed at a little over 6 percent GDP and local government debt has increased a little to 10.6 percent GDP.

US Total Debt Since 1900

Chart D.13t: Total National Debt in 20th Century

Government debt began the 20th century at less than 20 percent of GDP. It jerked above 45 percent as a result of World War I and above 70 percent in the depths of the Great Depression. Debt has breached 100 percent of GDP twice since 1900: during World War II and in the aftermath of the Crash of 2008.

Federal, State, Local Debt in 20th Century

Chart D.14t: Total National Debt by Government Level

At the beginning of the 20th century debt was equally divided between federal and state and local debt, totaling less than 20 percent of GDP. After World War I, the total debt surged to 45% of GDP. But by the mid 1920s debt had declined to below 35 percent of GDP. Then came the Great Depression, boosting total public debt to 70 percent of GDP. World War II boosted federal debt to almost 122 percent of GDP in 1946, with state and local debt adding another 7 percent. For the next 35 years successive governments brought the debt below 50 percent of GDP, but President Reagan increased the federal debt up over 50 perent of GDP, and total debt towards 70 perent to win the Cold War. President Bush increased the debt to fight a war on terror and bail out the banks in the crisis of 2008.

Top Debt Requests:

Find DEFICIT stats and history.

US BUDGET overview and pie chart.


See FEDERAL BUDGET breakdown and estimated vs. actual.

See BAR CHARTS of debt.

See PIE CHARTS of total debt, federal debt.

Check STATE debt: CA NY TX FL and compare.

See DEBT HISTORY briefing.

Take a COURSE at Spending 101.

Make your own CUSTOM CHART.

Debt Data Sources

Debt data is from official government sources.

Gross Domestic Product data comes from US Bureau of Economic Analysis and

Detailed table of debt data sources here.

Federal debt data begins in 1792.

State and local debt data begins in 1890.

State and local debt data for individual states begins in 1957.

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Gross Federal Debt

Debt: $18,745,703,823,000

Data Sources for 2011_2020:

Sources for 2011:

GDP, GO: GDP, GO Sources
Federal: Fed. Budget: Hist. Tables 3.2, 5.1, 7.1
State and Local: State and Local Gov. Finances
'Guesstimated' by projecting the latest change in reported spending forward to future years

Sources for 2020:

GDP, GO: GDP, GO Sources
Federal: Fed. Budget: Hist. Tables 3.2, 5.1, 7.1
State and Local: State and Local Gov. Finances
'Guesstimated' by projecting the latest change in reported spending forward to future years

> data sources for other years
> data update schedule.

Federal Deficit and Outlay Actuals for FY15

On October 15, 2015, the US Treasury reported in its Monthly Treasury Statement (and xls) for September that the federal deficit for FY15 ending September 30 was $439 billion. Here are the numbers, including total receipts, total outlays, and deficit compared with the numbers projected in the FY 16 federal budget published in February 2015:

Federal Finances
FY15 Outcomes
Receipts $3,176$3,249
Deficit$583$439 now shows the new numbers for total FY15 outlays and receipts on its Estimate vs. Actual page.

The Monthly Treasury Statement includes ""Table 4: Receipts of the United States Government, September 2015 and Other Periods." This table of receipts by source is used for to post federal receipt actuals for FY2015.

The Monthly Treasury Statement includes "Table 9. Summary of Receipts by Source, and Outlays by Function of the U.S. Government, September 2015 and Other Periods".   This table of outlays by function makes it possible for to estimate actual outlays by "subfunction" for FY2015 by factoring budgeted amounts by the difference between budgeted and actual "function" amounts where actual outlays by subfunction cannot be gleaned from the Monthly Treasury Statement.

Final detailed FY2015 numbers will not appear until the FY2016 federal budget is published in February 2015 with the actual outlays for FY15 in Historical Table 3.2--Outlays by Function and Subfunction.

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