Roaring '20s or the Disco era? See which decades are most represented.

Homes back East are older, and houses out West are newer, right? Not quite.

We looked at single-family houses built from 1900 to 2014 to see which decades are most represented by the current housing stock. Turns out, the largest share of homes in the Northeastern states was built in the ’80s, but in California the ’50s remains the dominant decade for homes still standing.

Meanwhile, Washington, DC, is holding strong as the area with the oldest decade – the 1920s – most represented today.

1920-1929: Washington, DC

Washington, DC 1950-1959: California, Connecticut, Illinois, Kansas, Michigan, Missouri, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Wisconsin

California, Connecticut, Illinois, Kansas, Michigan, Missouri, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Wisconsin 1970-1979: Hawaii, Mississippi, Nebraska, North Dakota, Oklahoma, Oregon, West Virginia, Wyoming

Hawaii, Mississippi, Nebraska, North Dakota, Oklahoma, Oregon, West Virginia, Wyoming 1980-1989: Alaska, Louisiana, Maine, Maryland, Massachusetts, New Hampshire, Vermont, Virginia

Alaska, Louisiana, Maine, Maryland, Massachusetts, New Hampshire, Vermont, Virginia 1990-1999: Delaware, Indiana

Delaware, Indiana 2000-2010: Alabama, Arizona, Arkansas, Colorado, Florida, Georgia, Idaho, Iowa, Kentucky, Minnesota, Montana, Nevada, New Mexico, North Carolina, South Carolina, South Dakota, Tennessee, Texas, Utah, Washington

Knowing when the largest share of homes was built isn’t just a fun piece of trivia. It also provides a window into the character of real estate in your state. Check out some of the most popular styles through the decades.

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