Queens, Brooklyn and the Bronx led New York state counties in numerical population growth in the past year, leading to New York City’s highest population count ever, the U.S. Census Bureau announced today.

The city’s population increased by 55,000 to 8,550,405 and the three rapidly growing boroughs accounted for 84 percent of the city’s growth, the bureau reported.

Brooklyn has had the highest population growth in the past five years, followed by the Bronx, Queens, Manhattan and Staten Island, according to the Census Bureau. The population across the five boroughs has expanded by 375,000, based on the bureau’s estimates as of July 2015, the city’s biggest population increase since the 1920s.

“The sustained population growth of our city is proof that New Yorkers not only want to remain at home, but that people are moving from all over to work and raise a family in the greatest city in the world,” Mayor Bill de Blasio said in a statement.

Queens gained 16,700 residents in 2015, while populations in Brooklyn and the Bronx grew by 16,015 and 13, 687 respectively.

Population growth was 7,552 for Manhattan and 1,257 for Staten Island last year.

Brooklyn gained the most citizens between 2010 and 2015 – 132,000 – a 5.3 percent jump. The Bronx added 70,300 persons while Queens saw 108,400 new residents.

Manhattan and Staten Island grew by 58,600 and 5,800 persons respectively.

“This is in many respects, the best of times,” New York City Planning Commission Chair Carl Weisbrod said in a statement. “The City is at an all-time high in population and it’s at an all-time high in jobs. It’s one of the drivers that makes the housing program so important.”

The city gained nearly 50,000 residents due to immigration in the past five years.

90 percent of the state’s population growth since 2010 comes from New York City.