Short answer. The U.S. has experienced one true national housing crash in the modern record: 2008–2011, when median existing-home prices fell 23.7% nominally and 27% on the Case-Shiller index. Other downturns (1990, 1981) were regional.
Distinguishing a "crash" from a slowdown matters: the U.S. has had many regional housing slowdowns but only one nominal national price crash since World War II.
The 2008-2011 crash
Median existing-home prices fell from $217,900 (2007) to $166,200 (2011) — a 23.7% decline over four years. The S&P/Case-Shiller National Home Price Index, which is repeat-sales-weighted, showed an even larger 27% decline. The national crash was concentrated in epicenter MSAs (Las Vegas -62%, Phoenix -55%, Miami -51%) but affected all 50 states.
Regional crashes that were not national
- 1990-91 (S&L era): Texas, Florida, much of New England saw 15-25% nominal declines, but national median prices fell just 1.2% in 1990 (the only nominal national decline before 2008).
- 1981-82 (Volcker): Sales volume collapsed 50%, but national median prices held essentially flat in nominal terms (-2% real).
- 1973-75 (oil shock): Sales volume fell 30%, but median prices kept rising at high inflation rates.
The 2020-2024 cycle
Despite the steepest mortgage rate increase since 1980, U.S. national median prices have continued rising — reaching $408,000 in 2024, an all-time high. The 2022-24 cycle is a transaction-volume crash but not a price crash.
Why the U.S. has had so few national crashes
The U.S. mortgage system, federal-tax preference for owner-occupied housing, and the sheer regional diversity of the country have historically prevented synchronized national declines. The 2008 crash was the result of a synchronized credit cycle (subprime securitization) that affected nearly every market simultaneously.
Sources
U.S. Census Bureau Survey of Construction; National Association of Realtors Existing Home Sales report; Freddie Mac Primary Mortgage Market Survey; National Bureau of Economic Research Business Cycle Dating Committee.