New Jersey and Florida account for almost half of the 50 U.S. counties whose housing markets are most vulnerable to the economic effects of the coronavirus, an Attom Data Solutions report said.
Attom ranked 483 counties across the country based on the percentage of housing units receiving a foreclosure notice in the fourth quarter, the number of underwater properties in each county and the percentage of local wages required to pay for major homeownership expenses.

Thirty-six of the top 50 most vulnerable counties had median home prices in the $160,000-to-$300,000 range, the report noted.
Of the 10 most vulnerable counties, six are in New Jersey, including Sussex at No. 1 and Warren at No. 2.
"It looks like the Northeast is more at risk than other areas," Todd Teta, Attom's chief product officer, said in a press release. "As we head into the spring home buying season, the next few months will reveal how severe the impact will be."
Among the New Jersey counties that would be most affected, five are in the New York metropolitan area: Bergen, Essex, Passaic, Middlesex and Union. However, of the four counties in New York that Attom considered to be most vulnerable, only Rockland was in proximity to New York City.
Kate Mitchell is the chief executive officer at Edge Intelligence. Prior to that she was CEO of CopperEye. She possesses nearly three decades of wide-ranging, customer-facing executive success with such database leaders as Oracle and IBM. Prior to joining CopperEye, Mitchell was senior vice president of marketing and business development for SeeBeyond Technology Corporation, where she worked with such customers as Target, barnes&noble.com, JP Morgan Chase and General Motors to grow revenues 400 percent in her four-year tenure and establish SeeBeyond as the global leader in business integration. Contact her at kate.mitchell@edgeintelligence.com.
Andrew Hewitt is an analyst at Forrester Research serving infrastructure and operations professionals. Andrew’s research focuses on enterprise mobility and how organizations can create better mobile experiences for employees that, in turn, improve customer outcomes. He is a contributor to Forrester's employee experience research, and his key coverage areas include enterprise mobility, unified endpoint management, enterprise mobility management, and bring-your-own-device (BYOD). He also looks at how companies can employ IoT technologies in the workplace to improve employee experience and productivity.
Previous Work Experience
Prior to his role as analyst, Andrew served as a researcher on Forrester's infrastructure research team, focusing on enterprise mobility and IoT-connected smart buildings. Before that, he was a senior research associate; he spent his time researching the cloud and hyperconverged infrastructure market. Before joining Forrester, Andrew worked as a help desk assistant for the Aspen Institute in Aspen, Colorado.
Education
Andrew graduated summa cum laude from The George Washington University in Washington, D.C. with a B.A. in international relations.
Dave Dyell is president and CEO of Jellyfish Health.
For New York City proper, all five boroughs were in the middle of the list: Staten Island was ranked 161, Queens was 271, Manhattan at 312, Brooklyn at 320 and the Bronx was 327.
Most of the Florida counties considered at risk are in the northern and central portions of the state. But Broward County, which includes Fort Lauderdale, is also on that list.
There were four counties in the metro Chicago area on the list were Kane, Lake, McHenry and Will in Illinois. Cook County, which includes Chicago proper, is ranked 53rd most vulnerable.
Meanwhile, the only California county on the 50 most vulnerable list is Shasta. Los Angeles County was No. 276. The Bay Area counties were also in the bottom half of the list.
At the other end of the spectrum, 10 of the counties where the housing market is least vulnerable to the coronavirus are in Texas. Seven are in Wisconsin and there are five in Colorado.
King County in Washington, where Seattle is located, was the 20th least vulnerable county according to Attom.