Families’ median net worth fell almost 40% between 2007 and 2010, down to levels last seen in 1992, the Federal Reserve said in a report Monday.

As the U.S. economy roiled for three tumultuous years, families saw corresponding drops in their income and net wealth, according to the Fed’s Survey of Consumer Finances, a detailed snapshot of household finances conducted every three years.

Median net worth of families fell to $77,300 in 2010 from $126,400 in 2007, a drop of 38.8%–the largest drop since the current survey began in 1989, Fed economists said Monday. Net worth represents the difference between a family’s gross assets and its liabilities. Average net worth fell 14.7% during the same three-year period.

Much of that drop was driven by the housing market’s collapse. Families whose assets were tied up more in housing saw their net worth decline by more. Among families that owned homes, their median home equity declined to $75,000 in 2010, down from $110,000 three years earlier.

Between 2007 and 2010, incomes also dropped sharply. In 2010, median family income fell to $45,800 from $49,600 in 2007, a drop of 7.7%. Average income fell 11.1% to $78,500, down from $88,300. That was a departure from earlier in the decade. During the preceding three years, median income had been constant, while the mean had climbed 8.5%.

Family incomes also dropped the most in regions of the country hardest hit by the housing market tumble. Median family income in the West and South decreased substantially, while those in the Northeast and Midwest saw little change.

Incomes dropped the most among middle-class families. The wealthiest 10%, by net worth, saw their median income fell 1.4% over the three years, while families in the second and third quartiles experienced a drop of 12.1% and 7.7%, respectively. The lowest quartile’s median income fell by 3.7%. Read more at Wall St. Journal