We speak about Asian Americans as a single block. Here's how incredibly complex they are

Updated 1203 GMT (2003 HKT) May 6, 2021

(CNN)Asian Americans are often labeled as a singular group, but the fastest growing population in the US is far from a monolith — and their complex history and cultures are often glossed over.

While they have been in America since the nation's infancy, Asian Americans continue being harmed by stereotypes like the "model minority" as well as racial violence. Much of the recent anti-Asian bias is a result of many people being ignorant of the group's history in the country and xenophobic messaging around the Covid-19 pandemic, experts and lawmakers say.
Here's a look at how diverse Asians in America are and why we can't speak about them as a single block.

They trace their roots to dozens of countries

The term "Asian American" is an umbrella term for dozens of ethnic groups of Asian descent. It was first used in 1968 by University of California Berkeley graduate students as the name of an organization aimed at uniting Chinese, Korean, Japanese and Filipino Americans, among others to fight for political and social action.
An estimated 22 million Asian Americans live in the US, making up nearly 7% of the total population, US Census data shows. Those who self-identify as Chinese, Indian or Filipino ancestry make up the three largest Asian groups in the US, but no one ethnicity makes up a majority.
For decades, Asians were grouped together with Pacific Islanders by government officials and advocates. Currently, there's an estimated 1.6 million Pacific Islanders living in the US, including many who identify as Native Hawaiian, Samoan and Guamanian or Chamorro.

About a third of Asians in the US live in California

Most Asians live around big cities in four states -- California, New York, Texas and Hawaii -- but for the most part, these cities are not home to a single ethnic group.
About a third of all Asians in the US live in California, where there's a large Chinese population in Los Angeles County along with Filipino, Korean, Japanese and Indian communities. Meanwhile, the Asians in Texas are Indian, Vietnamese, Chinese, Filipino, Korean and Pakistani.
The Asian diaspora across the country is as diverse as the reasons that led people to migrate to the US.
There are approximately 309,000 Hmong people in the US. The largest share is in Wisconsin and Minnesota, where many settled as refugees in the 1970s.
In southern states like Louisiana and Mississippi, Vietnamese people make up the largest share of the Asian population. They resettled in the area following the Vietnam War.

They have the greatest income divide among racial and ethnic groups

Economically, Asian Americans are the most divided racial or ethnic group in the US, a Pew Research study found. High-income Asian Americans near the top of the income ladder earn 10.7 times as much as those on the opposite end of the income spectrum.
While Asian Americans have the highest education levels compared to Black, Hispanic and White people, their economic and education levels are very diverse. Some hold white collar jobs and others work in low-wage service sectors. For example, they represent 57% of 449,000 "miscellaneous personal appearance workers," a category that mainly includes nail salons, according to the US Bureau of Labor Statistics.
The highest earning Asians among those with a college degree and over 25 years old are Indian and Taiwanese, with a median household income of more than $100,000 per year. Meanwhile, the median household income for Burmese and Nepalese people is under $46,000 and $63,000, respectively.