City finished with 98 points, one point ahead of second-placed Liverpool, who finished the campaign with a 2-0 home victory over Wolverhampton Wanderers.
At the conclusion of the highest-quality duel for the title ever seen in the English game, City, with a remarkable 14th straight league victory, came from behind to become the first team since Manchester United in 2009 to earn back-to-back championships.
With Liverpool leading 1-0 at home to Wolves, City's only moment of alarm came when they went 1-0 down at Brighton's AMEX Stadium to a 27th minute Glenn Murray goal.
But Sergio Aguero responded with a goal 83 seconds later and City went on to dominate with Aymeric Laporte heading them ahead before halftime and Riyad Mahrez and Ilkay Gundogan sealing the triumph after the interval.
Champions League finalists Liverpool, who won with a double from Sadio Mane, had the consolation of achieving the best-ever performance by a second-placed club in the annals of England's top flight.
(Reporting by Ian Chadband Editing by Toby Davis) DM

Manchester City captain Vincent Kompany lifts the trophy among teammates after the English Premier League match between Brighton and Hove Albion and Manchester City, Brighton, Britain, 12 May 2019. Manchester City won 4-1 and won the Premier League title. EPA-EFE/JAMES BOARDMAN EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or 'live' services. Online in-match use limited to 120 images, no video emulation. No use in betting, games or single club/league/player publications.