The poll by Conservative Home revealed the ardent Brexiteer is seen as a better choice than Boris Johnson, Michael Gov, David Davis and every other would-be Tory leader.
The survey of 1,326 people saw Jacob Rees-Mogg come out on top – although, technically, the MP for North East Somerset really came second.
First place among respondents was ‘none of the above’ – although Mr Rees-Mogg was the highest-placed real candidate.
The results were released by Conservative Home on December 4 – the sixth such poll the website has carried out since the General Election.
The website revealed ‘none of the above’ was a consistent high-scorer since the election gamble backfired on Mrs May, sparking a huge drop in her approval ratings.
They said: “’None of the Above’ has now come first, first, second, second, first and now first again in the six Next Tory Leader surveys that we have conducted since the election.”
The website said David Davis’ and Boris Jonhson’s support was dropping while Mr Rees-Mogg and Michael Gove were enjoying a boost.
They said: “Jacob Rees-Mogg is up from 15 per cent to 18 per cent. Michael Gove was seven per cent last month; he is now on 12 per cent, and is the second named candidate, behind Rees-Mogg. That’s worth keeping an eye on.
“Note too the gradual decline of David Davis. His ratings since the election have been 24 per cent, 20 per cent, 15 per cent, 13 per cent, nine per cent and now eight per cent.”
Mr Johnson in particular was suffering a decline in support due to “Mogg-mania”.
The website said: “Johnson’s ratings have been 18 per cent, nine per cent, seven per cent, that revived 21 per cent, 19 per cent and now 11 per cent. Mogg-mania is squeezing him.”
Mr Rees-Mogg again endeared himself to Brexiteers today with a brilliant question to Mrs May during Prime Minister’s Questions.
Tory MP Jacob Rees-Mogg was greeted with laughter from MPs when he asked whether Mrs May needs to apply a new coat of paint to her Brexit “red lines”.
Mr Rees-Mogg said: “Before my Right Honourable Friend next goes Brussels, will she apply a new coat of paint to her red lines because I fear on Monday they were beginning to look a little bit pink.”
Mrs May insisted she remains certain Britain will leave the single market and customs union after Brexit.
She said: “I can happily say to my Honourable Friend that the principles on which this Government is negotiating was set out in the Lancaster House speech. They were set out in the Florence speech and those principles remain.”