By FOX SPORTS Staff
Dempsey, Jermain Defoe and Gareth Bale all scored in the span of seven minutes to cancel out Samir Nasri's opening goal as the Lilywhites picked up a vital three points.
Spurs are currently fighting to finish in the top four this season and with the win, Andre Villas-Boas' men have closed the game on fourth placed Chelsea to just one point.
The Lilywhites have only five league games to secure qualification into next season's Champions League, starting with their clash against relegation-threatened Wigan on Saturday.
And Dempsey admits his side may need to win each of their remaining game in order to finish in the top four.
"Three different players scored, that gives confidence to the team and hopefully the result will give us that push for the final five matches of the season as we try to get into the top four," Dempsey was quoted as saying by the official Spurs website.
"The result gives us a lift and hopefully we'll now get on a good run of form.
"We've had a bit of a rough patch and hopefully this will give us the lift we need to finish strong."
Dempsey also reflected on his vital equalising goal which sparked Spurs' comeback against City.
"We were under pressure at half-time at 1-0 down in a game where we really needed to get points," Dempsey added.
"We knew a goal would raise our spirits. It was a great ball in from Gareth and I tried to stay on the shoulder of the defender and I timed it right.
"That goal gave us a lift and the next two goals were fantastic, Lewis to Jermain, coming inside and he's lethal in front of goal then Tom, a perfect pass into Gareth who was able to get his body in front of the defender and chip the goalkeeper.
"That was the icing in the cake. We knew once that goal went in we had it wrapped up."
Dempsey has thus far made 24 appearances for Spurs since moving to the club from Fulham during the summer.