Marked by the deadly coronavirus pandemic, civil unrest and a contentious presidential election that divided the nation, 2020 was a year that many Palm Beachers will be happy to bid farewell to when midnight arrives Thursday evening.

But the tumultuous year has had an upside for Palm Beach real estate agents and brokers — an onslaught of buyers that shook the island’s real estate market.

Just compare the residential sales that hit or exceeded $20 million this year to 2019. Last year, there were 10 of those transactions. As of the middle of this week, there had been 21 deals in that price category recorded by the Palm Beach County Clerk’s office — an annual record for the island.

Here’s a roundup of the single-family property sales — houses and land — that hit the $20 million mark, based on deeds recorded at the Palm Beach County courthouse as of Wednesday. The prices listed are those recorded with the deeds.