Household Formation on the Rise—For a Surprising Reason

Writing for the Terner Center for Housing Innovation at U.C. Berkeley, Jed Kolko breaks down the data on recent trends in household formation.

1 minute read

August 17, 2015, 1:00 PM PDT

By James Brasuell @CasualBrasuell


In the "turnaround the housing market has been looking for," according to Jed Kolko, the U.S. Census has reported an increase in household formation for several quarters.

Before taking a deeper dive into the Census data, Kolko explains the significance of household formation: "the job market has improved, and household formation is on the rise, approaching or exceeding historical averages. As new households form, they fill up vacant homes, pushing up prices and rents. In response, homebuilders build more, which in turn adds to overall economic activity."

But that's not the kicker of the data, according to Kolko. The demographic trend driving this shift is not, as one might expect, the Millennial generation finally moving out of their parents' homes. In fact, explains Kolko, "the share of young adults living in their parents’ homes continues to rise, as the Census Bureau and the Pew Research Center have reported."

Kolko goes on to lead an exploration of how to solve the puzzle of contemporary household formation, including explanations of the critical statistics of "headship rate" and adult population growth.

The answer to the puzzle: that older adults are driving household formation, because the U.S. population is aging. In addition to making that argument and backing it up with data, Kolko also provides thorough access to the process by which he reached that conclusion.

Monday, August 17, 2015 in Terner Center for Housing Innovation

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

April 10, 2025 - Diana Ionescu

A line of white wind turbines surrounded by wheat and soybean fields with a cloudy blue sky in the background.

Wind Energy on the Rise Despite Federal Policy Reversal

The Trump administration is revoking federal support for renewable energy, but demand for new projects continues unabated.

April 15 - Fast Company

Red and white Caltrain train.

Passengers Flock to Caltrain After Electrification

The new electric trains are running faster and more reliably, leading to strong ridership growth on the Bay Area rail system.

April 15 - Office of Governor Gavin Newsom

View up at brick Catholic church towers and modern high-rise buildings.

Texas Churches Rally Behind ‘Yes in God’s Back Yard’ Legislation

Religious leaders want the state to reduce zoning regulations to streamline leasing church-owned land to housing developers.

April 15 - NBC Dallas