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US housing deficit grew to 4.7 million despite construction surge

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Zillow (NYSE:ZG) reports that America's housing shortage reached a record 4.7 million units in 2023, with the deficit growing by 159,000 homes despite robust construction activity. While 1.4 million new homes were added to the housing stock in 2023, this failed to match the formation of 1.8 million new families.

The analysis reveals that 8.1 million families are currently "doubled up," sharing homes with non-relatives, with Millennials representing 38% of these arrangements. The largest housing deficits are concentrated in major metros like New York (402,361 units), Los Angeles (338,750 units), and Boston (150,541 units).

Despite record construction levels of 1.45 million completed units in 2023 and 1.63 million in 2024, affordability remains a challenge. A median-income family now needs a $17,670 raise to afford a typical home compared to 2019 levels.

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  • Housing deficit reached all-time high of 4.7 million units
  • 8.1 million families forced to share homes with non-relatives
  • Median-income families need $17,670 more to afford a typical home compared to 2019
  • Major metros facing severe shortages (New York: 402,361 units, Los Angeles: 338,750 units)
  • Available homes for rent or sale decreased by 2.8% year-over-year

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8.1 million families 'doubled up,' sharing their homes with people not related to them

  • America's housing deficit grew by 159,000 homes in 2023, according to the latest Census data.
  • Roughly 1.4 million new homes were added to the housing stock in 2023, but that number didn't keep pace with 1.8 million newly formed families. 
  • Millennials represent the largest generation of people sharing homes with non-relatives.

SEATTLE, July 9, 2025 /PRNewswire/ -- America's housing shortage grew to an all-time high of 4.7 million units, according to a new Zillow® analysis of recently released Census data. This deepening housing deficit remains the prime driver of the nation's housing affordability crisis. 

Construction boomed in response to high demand and price growth during the early years of the pandemic. But that hasn't been enough to keep up with the growing population, let alone undo nearly two decades of underbuilding that kicked off during the Great Recession. 

"The unfortunate fact is that we still don't have enough housing in this country for people who need it. Construction has helped prevent the housing deficit from ballooning, but it hasn't yet begun to close the gap," said Orphe Divounguy, senior economist at Zillow. "We know what works: lower building restraints to allow for more density and less expensive housing. More of these measures at the local level can help get more homes built and begin to ease this outsize financial burden for millions of Americans." 

In 2023, 3.4 million homes sat vacant and available for rent or for sale, according to Census data. Meanwhile, 8.1 million families shared their homes with people who weren't related to them. While some people choose to live with roommates, most of these families would probably prefer their own place if one were available that they could afford.

While mortgage costs are slightly lower than last year nationwide, buying a home is still a stretch, especially for first-time buyers. A family earning the median household income could afford to buy a typical home in 2019 — now they would need a $17,000 raise

Construction boom slows deficit increase, but hasn't stopped it

A home-building surge over the past five years has helped slow the growth of the housing deficit, but isn't reversing it. The housing deficit grew by 159,000 homes in 2023 — still an increase, but smaller than the jump of 257,000 in 2022. 

The total number of homes in America grew by 1.4 million homes in 2023, up from 1.3 million added the year before. This includes new construction and subtracts units that were destroyed. While the total number of families also increased, fewer new families had to share a home compared to 2022. 

Fewer building restrictions and more density are needed

Builders completed 1.45 million units in 2023, and that momentum continued in 2024, with 1.63 million units completed; both are records since 2007. Builders responded faster to the pandemic-era spike in demand in areas with fewer building restrictions, Zillow Research found. This has helped price and rent growth ease in those metros and balanced those markets faster than in places with more stringent regulations. 

Experts overwhelmingly agree that relaxing zoning laws to raise density is one of the best ways to make housing more affordable. These measures have broad support among homeowners and renters. Even adding a modest amount of density in the country's largest markets could create millions of new homes.

That's why Zillow advocates in support of state-level initiatives that relax zoning requirements for affordable housing and 'missing middle' higher-density housing, including ADUs, duplexes and triplexes. 

Millennials share housing with nonrelatives more than any other generation, making up 38% of the families "doubling up" in 2023, followed by Gen Z at 29%, Gen X at 17%, and baby boomers and older generations at 16%.

Among the 50 largest major metros, New York, Los Angeles, Boston, San Francisco and Washington, DC, have the largest housing deficits.

Metro Area*

Housing
Deficit
(2023)

Change in Housing 
Deficit Year over
Year (YoY)**

Change in
Available Units
YoY (%)

Raise Needed for Median-
Income Family to Afford a
Mortgage on a Typical Home at
20% Down

United States

4,699,836

159,063

-2.8 %

$17,670

New York, NY

402,361

12,437

-3.2 %

$99,343

Los Angeles, CA

338,750

2,022

0.9 %

$149,375

Chicago, IL

106,522

9,143

-9.4 %

-$187

Dallas, TX

49,204

1,054

1.9 %

$17,448

Houston, TX

20,164

136

2.3 %

$6,304

Washington, DC

132,238

(983)

-3.1 %

$26,513

Philadelphia, PA

81,448

8,580

-4.7 %

$16,344

Miami, FL

71,966

5,022

-4.5 %

$59,379

Atlanta, GA

66,323

780

2.6 %

$14,735

Boston, MA

150,541

(4,571)

2.6 %

$78,703

Phoenix, AZ

98,703

4,719

7.8 %

$22,500

San Francisco, CA

139,990

(11,501)

8.2 %

$165,566

Riverside, CA

85,087

8,099

-5.6 %

$60,685

Detroit, MI

36,187

1,198

3.4 %

-$1,804

Seattle, WA

101,923

(5,974)

8.3 %

$84,356

Minneapolis, MN

73,059

(4,501)

6.2 %

$8,627

San Diego, CA

95,831

1,892

0.7 %

$128,954

Tampa, FL

33,200

1,858

-0.2 %

$27,198

Denver, CO

70,919

(749)

1.8 %

$43,588

Baltimore, MD

40,644

3,836

-12.3 %

$8,104

St. Louis, MO

17,368

2,544

-7.7 %

-$4,897

Orlando, FL

24,402

2,874

2.2 %

$26,497

Charlotte, NC

22,098

3,507

-2.9 %

$15,302

San Antonio, TX

13,558

(2,220)

7.5 %

$8,064

Portland, OR

70,485

(1,799)

-0.9 %

$48,708

Sacramento, CA

60,431

(2,293)

4.9 %

$53,660

Pittsburgh, PA

15,420

(212)

0.7 %

-$11,244

Cincinnati, OH

32,025

(256)

-1.6 %

-$4,396

Austin, TX

63,210

1,878

-0.1 %

$27,545

Las Vegas, NV

32,192

3,117

-6.8 %

$29,140

Kansas City, MO

27,923

344

-5.9 %

$7,383

Columbus, OH

36,219

1,240

-2.5 %

$2,561

Indianapolis, IN

15,005

330

-6.1 %

-$3,052

Cleveland, OH

13,774

(1,609)

-1.0 %

-$11,588

San Jose, CA

56,378

(1,178)

5.2 %

$251,597

Nashville, TN

34,843

(1,142)

-4.1 %

$25,508

Virginia Beach, VA

19,887

1,044

-7.6 %

$13,898

Providence, RI

29,791

3,318

-13.9 %

$50,418

Jacksonville, FL

13,243

(1,007)

10.8 %

$19,202

Milwaukee, WI

13,929

(977)

1.8 %

$36,519

Oklahoma City, OK

11,605

(2,365)

-5.1 %

-$2,201

Raleigh, NC

11,096

(635)

3.3 %

$16,602

Memphis, TN

1,543

(1,807)

1.8 %

$807

Richmond, VA

15,245

(1,118)

8.5 %

$12,816

Louisville, KY

11,107

1,144

-1.8 %

-$855

New Orleans, LA

4,234

30

1.3 %

$10,543

Salt Lake City, UT

33,258

3,078

0.2 %

$40,038

Hartford, CT

13,131

(426)

-5.1 %

$16,104

Buffalo, NY

17,194

1,993

-12.6 %

-$3,137

Birmingham, AL

5,966

1,925

-13.5 %

-$3,933

*Table ordered by market size
** A positive number indicates a rising housing deficit

About Zillow Group
Zillow Group, Inc. (Nasdaq: Z and ZG) is reimagining real estate to make home a reality for more and more people. As the most visited real estate app and website in the United States, Zillow and its affiliates help people find and get the home they want by connecting them with digital solutions, dedicated real estate professionals, and easier buying, selling, financing, and renting experiences. 

Zillow Group's affiliates, subsidiaries and brands include Zillow®, Zillow Premier Agent®, Zillow Home Loans℠, Zillow Rentals®, Trulia®, Out East®, StreetEasy®, HotPads®, ShowingTime+℠, Spruce®, and Follow Up Boss®. 

All marks herein are owned by MFTB Holdco, Inc., a Zillow affiliate. Zillow Home Loans, LLC is an Equal Housing Lender, NMLS #10287 (www.nmlsconsumeraccess.org). © 2025 MFTB Holdco, Inc., a Zillow affiliate.

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SOURCE Zillow

FAQ

What is the current housing deficit in the United States according to Zillow (ZG)?

According to Zillow's 2023 analysis, the U.S. housing deficit reached an all-time high of 4.7 million units, growing by 159,000 homes despite increased construction activity.

How many families are sharing homes with non-relatives in 2023?

8.1 million families are 'doubled up,' sharing their homes with people not related to them, with Millennials making up 38% of these arrangements.

Which U.S. cities have the largest housing deficits in 2023?

The largest housing deficits are in New York (402,361 units), Los Angeles (338,750 units), Boston (150,541 units), San Francisco (139,990 units), and Washington, DC (132,238 units).

How much additional income does a median-income family need to afford a typical home in 2023?

A median-income family needs a $17,670 raise compared to 2019 levels to afford a typical home.

How many new homes were added to the U.S. housing stock in 2023?

1.4 million new homes were added to the housing stock in 2023, while 1.45 million units were completed that year, followed by 1.63 million units in 2024.

What percentage of 'doubled up' households are Millennials vs. other generations?

Millennials represent 38% of doubled-up households, followed by Gen Z at 29%, Gen X at 17%, and baby boomers and older generations at 16%.
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