Here’s how to tell a real Census-taker from a scammer

They’re concerned that criminals will take advantage of the Census to impersonate Census-takers and pry sensitive information from unsuspecting Americans. AARP’s Fraud Watch Network is already engaged in warning people about imposter scams in which criminals pose as representatives of other government agencies, including the Internal Revenue Service (IRS).

AARP has released a study which found that nearly half of U.S. adults have been targeted by imposter scams in the past. The Federal Trade Commission received 647,000 reports of imposter scams last year, a 50 percent increase over 2018.
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"We've learned that scammers are very shrewd and adept at capitalizing on current events," said Kathy Stokes, director, fraud prevention programs, at AARP. "The Census has been in the news, so most people are expecting to hear soon from the Census Bureau. Scammers will use that to their advantage as they aim to deceive people into sharing sensitive information or handing over money."
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In most of these scams, the criminals will likely contact potential victims by phone or by mail. The Census Bureau usually contacts people by mail or sends a representative to the home, but the best way to tell a real Census-taker from an imposter is by the questions that are asked.

https://www.consumeraffairs.com/news/aarp-warns-that-imposter-scammers-will-exploit-2020-census-022020.html