While total GDP includes consumer spending, business spending, government spending, and international trade, the contributions to GDP vary widely by sector.
In 2021, real estate alone accounted for more than 11% of US GDP, accounting for more than $2.6 trillion in economic activity. The second largest sector was finance and insurance, which accounted for 8.4% of US GDP, while state and local government spending was not far off, in third place, accounting for 8. 3% of GDP. Non-durable goods manufacturing contributed the least of all industry groups, but still accounted for 4.7 percent of US GDP.