The borough that brought us egg creams and man buns will soon surpass the Windy City in population, a new report predicts.

The number of people living in Brooklyn has spiked more than five percent from 2.47 million to 2.6 million since 2010 — and it’s only getting hotter, according to a US Census Bureau estimate.

If Kings County keeps growing at the same rate, it will swell to 2.75 million — surpassing Chicago’s predicted 2.74 million — by 2020, according to the US Census Bureau report.

Brooklyn residents think they know why.

“It’s a fabulous place,” said Mark Cox, an architectural designer from Park Slope. “I get it, this is where my heart is. I understand the allure. It’s a such wonderful, diverse place.”

Crime-ridden Chicago, by contrast, has grown less than 1 percent from roughly 2.6 million to 2.7 million since 2010, according to the data, which was first reported by Gothamist.

If Brooklyn’s booming growth continues, it will be the first time the city has trumped Chicago in population since 1890.

Brooklyn wasn’t always such a popular place to live. The borough’s peak population was 2.74 million in 1950 — but it plummeted to roughly half of that in the next 30 years, according to the report.

The Big Apple has the largest population in the United States, followed by LA and then Chicago, the Census data reveal.

“Brooklyn is its own city, it has a mind of its own,” said Allan Kramer, 65, a Park Slope native. “There’s something about it, where you always feel you’re a part of it. You take pride in it.”

Mallory Gladman, 30, who moved to South Slope a year and a half ago, is one of the newcomers.

“Brooklyn has so much to offer,” Gladman said. “You get the cafes, the restaurants, yoga studios. Brooklyn is so big, you have everything you need.”

The entire population of New York City in 2015 was roughly 8.6 million, up from 8.2 million in 2010, according to the report.

The population of Manhattan is just a fraction of Brooklyn at 1.6 million people.