Grant Street Cafe in Dumont made the announcement on Facebook Saturday, when more than 5,528 more cases were reported across New Jersey.
The Grant Avenue restaurant said it hopes to reopen Tuesday pending test results.
Meanwhile, sanitization is under way.
Grant's has been a local institution since opening in 1989.
Last year, it was named to CraftBeer.com's list of best beer bars in the U.S.
Click here to follow Daily Voice Teaneck and receive free news updates.