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.
With Forrester since July 2005, Diego primarily contributes to and advises on Forrester's offerings for Application Development & Delivery Professionals. He partners with Forrester's global application leaders and is a leading expert on SDLC processes and practices, covering topics such as Agile development, Agile and Lean transformations, Agile development sourcing strategies and services, Agile testing practices and tools, DevOps, and software testing and quality, with a key focus on systems of engagement. Diego also covers software delivery metrics, artificial intelligence, and open source governance.
His 28 years of industry experience, in addition to application development, allow him to give expert advice on change management programs for optimizing the overall modern application delivery process, execute technology management assessments, review technology management strategies, and make comparisons. He also has experience in complex mission-critical project and client engagement management.
Previous Work Experience
Prior to joining Forrester, Diego held international management positions covering various roles, such as director consultant at Meta Group and head of Agile product development for advanced reuse methods and technologies at Quartersoft. He was also regional VP and director for consulting at Genesis/Iona, where he helped many clients transition to distributed applications. He also worked as an enterprise architect and project/product manager, participating in various pan-European projects. He started out as a software engineer, developing AI tools and early graphical user interface technologies at Olivetti.
Diego has also been very active in global open software standards consortia such as OMG, contributing to the early specifications of middleware standards such as CORBA and model-driven architecture. He has been a frequent speaker and panelist at many European conferences on software development.
Diego has published various research reports on open source, software reuse, semantic Web, and object technology, including the AI book Practical Experience in Building Expert Systems.
Education
Diego received a master's degree in computer science from Pisa University in Italy, and he specialized in artificial intelligence through on-site courses at Stanford University and SRI Palo Alto during a two-year working internship with Olivetti in the US.
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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.
