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Elementary students reacted to the Smithsonian National Zoo's three newly acquired cheetahs while seeing them for the first time at the zoo in Washington, May 31, 2007. Reuters

As President Trump rolls out new immigration executive orders and policy guidelines, American cities could soon see fundamental shifts in ethnic and cultural diversity.

U.S. cities are often called "melting pots" — or, perhaps more appropriately, salad bowls — housing countless walks of life representing various nations, cultures and ethnicities. But in 2017, a year when both immigration and inclusion are among the most important issues to the public, which are the most diverse metropolises in the nation?

A study published Wednesday collected the most recent U.S. census data from more than 500 cities to determine the most diversified urban areas throughout the country. Population sizes included in the report covered cities of less than 100,000 to those with more than 300,000. Jersey City, New Jersey, was ranked the most culturally diverse, factoring in variables like "ethnoracial, linguistic and birthplace diversity," the study indicated.

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African-American students on a tour of the Lincoln Memorial in Washington, Nov. 6, 2008. Reuters

But Maryland was found to be the most ethnically diverse state, featured in the top 10 with three of its cities taking second, third and fourth: Germantown, Gaithersburg and Silver Spring, respectively. Rockville was also among the most diverse cities, ranking No. 9 on the list.

New York City, home to nearly 8.5 million residents as of 2013, ranked No. 6 in diversity, but was No. 1 in the U.S. among largest cities. California also appeared frequently throughout the three lists separating small, midsize and large cities. Oakland was the second most diverse large city, home to just over 400,000 people.

The study makes one thing pretty clear: Regardless of policy, diversification is already abundant across the country, and doesn’t show any sign of slowing. By 2044, no other single demographic, not even Caucasian, will represent the majority for the first time in U.S. history.

For the list of the most diverse U.S. cities, visit here.