The Big Answer

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Those who lived alone in 1990 represented approximately 23.9 percent of all U.S. households. This number grew by nearly 5 million since 1980. That means that nearly one of every four households was a person who lived alone in 1990. By 2000, 25.8% lived alone. By 2010, 26.7% lived alone. Percent change 2000-2010: +3.2%.

More than 31 million households consist of one person living alone in 2010

Slightly more than 31 million households consist of one person living alone in 2010, according to the U.S. Census Bureau. A recent report based on the 2010 census shows an increase of 4 million one-person households from 2000. It’s all due to declining marriage rates and a high divorce rate.