"So happy to be able to share another trophy with our wonderful fans!" tweeted City's captain Vincent Kompany.
It is ironic that United came back from 2-0 down against City themselves last weekend to win 3-2 and delay City's party, only to surrender so tamely on home soil.
City manager Pep Guardiola was on a golf course somewhere not too far away with his son, Marius, and some friends, enjoying the first of three days off, uninterested in watching live if his City side would be gifted the Premier League title by a United defeat. He and Mourinho are old rivals from their time in Spain when the United boss managed Real Madrid.
Speaking at a press conference, Guardiola said: "Since November and December we have already been champions - when I saw pundits and people (say it is) "impossible for City to drop points". "I have won titles".
- City need five wins from five to break 100 points, which has never been done before.
"We are just trying to improve a little bit more, to give sequence to it". He played the last 15 or 20 minutes and, after the game, he said "I could not run, I cannot play".
"Hopefully we can celebrate with our fans against Swansea (next weekend) and be champions because they deserve it".
While moulding the prodigious talents of Sterling, Gabriel Jesus and Leroy Sane, Guardiola has also kept City's old guard from two previous Premier League title triumphs.
That result put City 16 points ahead of United with five games remaining, making it mathematically impossible for United to catch them.
Club captain Vincent Kompany watched the game at a family members' house, and he was clearly ecstatic after winning his third Premier League title. "Our Time. Our City".
Given that most judges rate City the best team the Premier League has ever seen, logic suggests the bookies are right.
Jake Livermore nearly put the visitors ahead in the 11th minute but a brilliant one-handed save from David De Gea kept the scores 0-0 a piece.
"He made a huge effort because after the action from Ashley Young against United, his problems in the knee, he could not train", Guardiola said. They won three games in a row.
He is the first Spanish manager to win the Premier League title - a prize he says is the hardest to claim in Europe.
City have scored 93 goals this season. "It's just thinking about what Tottenham's strengths are and trying to win the game".
"But the Premier League is one of the nicest and most important".
"It was great, first and foremost, to win the game against a very good City side", McKenna told MUTV. Now on 87, they need just nine more points to break Chelsea's Premier League record set during the 2004-05 campaign.