I got the text today and didn't even bother as I never heard about and it has all the trademarks of scam.
 "Click here". Riiiiiiight.
Now I find it in my spam folder so's I checks it out.

https://www.npr.org/sections/coronavirus-live-updates/2020/04/21/840363093/why-you-may-get-an-email-about-covid-19-from-the-census-bureau
"Questions will include:
Are you getting enough food to eat?
How often have you been bothered by feeling depressed or hopeless?
Did you wait to see a doctor because of the pandemic?   
How many hours are you spending teaching any children in your home?
The Census Bureau says your answers — combined with demographic information such as race, ethnicity and income — could help policymakers figure out how best to get through the crisis and better understand its impact on employment, education, health, food and housing security."


https://www.ksl.com/article/50013945/unsolicited-text-from-us-census-bureau-has-link-to-covid-survey-is-it-legit
"Turns out, bureau officials said they’re “collecting data to measure household experiences during the coronavirus pandemic.”
It’s called the Household Pulse Survey, and the data it collects pertains to job status, spending, food security, housing, health, access to health care and schooling.

In other words
Please answer these questions so we can see how despondent and dependent we have/can make you.
Doesn't take a 20 minute survey to know how F'd up stuff is and why we're there. 
NO, I WILL NOT COMPLY