The 10 Most (And Least) Diverse States In America For 2021

We used science and data to determine which States have the most racial diversity.

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Editor’s Note: We updated this article for 2021. This is our seventh time ranking the most diverse states in America.

Map Of The Most Diverse States In America

Click to enlarge

If you were to draw a line down the middle of the contiguous United States, you’d find a surprising difference in the diversity of the populous.

So, we did draw that line, determine the diversity of every state in America, and came out surprised.

Here’s a look:
Graph Of The Most Diverse States In America

Click to enlarge

The Southern States of the Union are, with some exceptions, a lot more diverse than the Northern States. The single most diverse state? That would be Hawaii, followed in a distant second by California. Using the Herfindahl-Hirschman Index (HHI), a standard measure of inequality, we ranked each state from most diverse to least diverse.

Here’s a look at the ten most diverse states in America for 2021.

The Most Diverse States In America For 2021

  1. Hawaii
  2. California
  3. Nevada
  4. Texas
  5. Maryland
  6. New Jersey
  7. New York
  8. Florida
  9. New Mexico
  10. Georgia

And the least diverse:

  1. Maine (Photos)
  2. Vermont (Photos)
  3. West Virginia (Photos)
  4. New Hampshire (Photos)
  5. Montana (Photos)
  6. Iowa (Photos)
  7. Kentucky (Photos)
  8. North Dakota (Photos)
  9. Wyoming (Photos)
  10. Idaho (Photos)

We found it interesting that Texas is such a staunchly Republican state given its level of diversity. Its diversity is a major reason why many pundits believe Texas will soon go blue.

But enough about politics, let’s take a dive into the science behind the maps and graphs.

For more reading about America, check out:

The 10 Most Diverse States In America For 2021

1. Hawaii

Hawaii|Hi, HI

Source: Public domain

Population: 1,422,094
Rank Last Year: 1 (No Change)
HHI: 2,415
More On Hawaii: Photos | Rent

Hawaii takes the diversity cake. Look at these numbers: 36.89% Asian, 24% mixed, 21.99% white, 10.49% Hispanic, 10% Native Hawaiian or Islander and 2% black. There’s also a few Native Americans here too.

Hawaii is interestingly the third most economically diverse state, too – meaning there’s a big gap between the rich and the poor here. And 3% of people in Honolulu are Buddhist. If you’ve ever been to Hawaii, you’d know, this is also a melting pot of cuisine. There’s poke, poi, pineapple, spam musubi, laulau, plate lunch, and of course, shaved ice.

2. California

California|Ca, CA

Population: 39,283,497
Rank Last Year: 2 (No Change)
HHI: 3,148
More On California: Photos | Rent

Of course, California is diverse. And at the rate things are currently going, California will be atop this list at some point soon. California is currently 37.18% white, 39.02% Hispanic, 14.28% Asian, and 5.52% African American. When you look at this ethnic mix, you can understand why there are more various languages spoken in California households than any other place in America.

While most people assume California’s diversity stems from a hispanic population boom, in fact, it’s the Asian population that’s stemming a majority of the growth here. As such, California has the nation’s highest Chinese population, too. Overall, as you can imagine, California has the most foriegn born residents. 27% of California’s population was born outside of the US.

In West Virginia, that number is 1%.

3. Nevada

Nevada|Nv, NV

Population: 2,972,382
Rank Last Year: 3 (No Change)
HHI: 3,400
More On Nevada: Photos | Rent

What makes Nevada such a diverse place? It’s less than half white for starters. (Hispanics make up nearly a third of the population, and African American and Asian populations are nearly 10%.)

The Las Vegas metro makes up a quarter of this state’s population. Due to the city’s international flair, it’s a big draw for people from all over the world. It has a large Phillipino population, and 5% of Vegas” population is of mixed descent. We won a little bit of money while we were in Vegas, but we lost it all again. Same as it ever was.

4. Texas

Texas|Tx, TX

Population: 28,260,856
Rank Last Year: 4 (No Change)
HHI: 3,471
More On Texas: Photos | Rent

Here in Texas, it’s pretty much a white or Hispanic state. 41.95% are white, 39.34% are Hispanic, and the other 20% pretty much black or Asian). Of course, over time, Texas has become very hispanic. Over the last few years, the white birth rate in Texas has shrunk to 33%, and the hispanic birth rate has risen, and is now 47%. But, across America, the birth rate for Hispanic women has fallen by 31 percent in the last ten years. That’s because now, 2 in 3 Hispanic women were born in the US.

Today’s American-born Hispanic women are less likely to be poor and more likely to be educated than their immigrant mothers and grandmothers, and are more often delaying childbearing so they can finish school and start careers. Hence, in many areas of America, the Hispanic population boom is slowing.

5. Maryland

Maryland|Md, MD

Population: 6,018,848
Rank Last Year: 5 (No Change)
HHI: 3,601
More On Maryland: Photos | Rent

It’s time to take a quick flight to Maryland. Maryland is the second least white state we’ll see, after New Mexico. Here, half the population is white. About a third are African American, ~10% are Hispanic, and ~7% are Asian.

Baltimore is the big reason Maryland has such a high black population. Baltimore is 63% black, which makes it the 5th most african americanest city in the country. Going back to 1940, Baltimore was 80% white. That’s a big change.

Maryland also ranks 4th in terms of income diversity. There’s a lot of really rich and really poor people here.

6. New Jersey

New-Jersey|Nj, NJ

Population: 8,878,503
Rank Last Year: 7 (Up 1)
HHI: 3,727
More On New Jersey: Photos | Rent

Here in the Garden State, god planted a lot of different seeds. The racial breakdown is as such, which shows there are actually four major races here, since the Asian population stands at 10%.

New Jersey has America’s largest Italian population. There are also a lot of Jews in New Jersey. 6% of Jew Nersians are of the Jewish American population, good for the 3rd highest population in the US

7. New York

New-York|Ny, NY

Population: 19,572,319
Rank Last Year: 6 (Down 1)
HHI: 3,730
More On New York: Photos | Rent

Of course New York is one of the most diverse states. This chart shows just over half of the population is white, and its about 20% Hispanic, 18% black, and nearly 10% Asian. Notice New York is also 2.6% mixed race, which is really high. New York is home to the nation’s largest Dominican population, too.

But New York City alone is what really makes this state so diverse in many ways. Within New York City there are more racial, ethnic and cultural differences than anywhere else in the US. Another interesting fact: 10% of New York City are either Muslims, Hindus, Buddhists or Jewish.

8. Florida

Florida|Fl, FL

Population: 20,901,636
Rank Last Year: 8 (No Change)
HHI: 3,805
More On Florida: Photos | Rent

Next we pull into Miami International Airport, and Florida, our eighth most diverse state in the union.

In Georgia, it’sthe black population that made it diverse, in Florida, it’s the hispanic and latino population which makes it so varied here. Florida is 53.9% white, 25.58% hispanic and 15.32% African American. That’s a racial stew. Plus, Florida has the nation’s largest Cuban population, which make up 7% of the state’s total population. That’s a lot.

Because of Florida’s high elderly population, it ranks first in the US for generational diversity – meaning the gap between the young and old is the biggest in Florida. That makes for some interesting conversations, I’m sure.

9. New Mexico

New-Mexico|Nm, NM

Source: Public domain

Population: 2,092,454
Rank Last Year: 9 (No Change)
HHI: 3,862
More On New Mexico: Photos | Rent

We look outside and realize we’re in New Mexico, our ninth most diverse state. New Mexico’s numbers look like this: 37.39% white, 48.79% Hispanic, 1.81% black and 10% Native American. Notice that New Mexico is also 1.45% Asian.

Other interesting factors: New Mexico is also one of the gayest state in America, where .5% of the population is. gay.

It’s also the most Hispanic state in the union, and the 4th most Native American state, too. Very diverse down there New Mexico. Good for you guys, sticking together and making it work and all.

10. Georgia

Georgia|Ga, GA

Population: 10,403,847
Rank Last Year: 10 (No Change)
HHI: 3,863
More On Georgia: Photos | Rent

As we come in for a landing, we realize where we are, and this is quite a surprise. We’re in Georgia. But when you look at the numbers, it makes sense. Here’s why: In the United States, the racial makeup is as follows: 60% white alone, 18% hispanic, 13% black, 6% asian, and 1% native american. And some other smaller races.

In Georgia, the racial composition is quite different. Here, the African American population is very high – at 31.18%. The White population here is 52.73% and hispanics make up almost 9.54%.

Now, let’s compare that to our least diverse state in America, Maine, where it’s over 90% white. A real big difference.

How We Determined The Most Diverse States In America For 2021?

We decided to look at racial diversity across America using the most recently available data — the 2015-2019 American Community Survey data from the US Census. Specifically, we looked at table B03002: HISPANIC OR LATINO ORIGIN BY RACE. Here are the actual categories as defined by the Census:

  • White alone*
  • Black or African American alone*
  • American Indian and Alaska Native alone*
  • Asian alone*
  • Native Hawaiian and Other Pacific Islander alone*
  • Some other race alone*
  • Two or more races*
  • Hispanic or Latino
* Not hispanic or latino

We then calculated the HHI for each state by taking the percent of each of the above for the state, squaring them, and then adding it together. This left us with scores ranging from 2429 (Hawaii) to 8822 (Maine).

Finally, we ranked each state based on the HHI with a lower score being more diverse than a high score. Hawaii took the distinction of being the most diverse, while Maine was the least diverse state in America. You can download the data here.

There You Have It — The Most Diverse States For 2021

After measuring the HHI of every state, these states came out on top with Hawaii as being the state that is the most diverse.

For more reading, check out:

Detailed List Of The Most Diverse States In America For 2021

Rank State HHI
1 Hawaii 2,415
2 California 3,148
3 Nevada 3,400
4 Texas 3,471
5 Maryland 3,601
6 New Jersey 3,727
7 New York 3,730
8 Florida 3,805
9 New Mexico 3,862
10 Georgia 3,863
11 Arizona 4,022
12 Alaska 4,034
13 Illinois 4,280
14 Virginia 4,314
15 Delaware 4,458
16 Louisiana 4,496
17 North Carolina 4,525
18 Oklahoma 4,576
19 Mississippi 4,630
20 South Carolina 4,797
21 Connecticut 4,857
22 Washington 4,966
23 Alabama 5,017
24 Colorado 5,127
25 Massachusetts 5,359
26 Rhode Island 5,475
27 Arkansas 5,542
28 Tennessee 5,758
29 Michigan 5,858
30 Oregon 5,934
31 Kansas 5,947
32 Pennsylvania 6,024
33 Utah 6,345
34 Nebraska 6,388
35 Indiana 6,396
36 Ohio 6,401
37 Missouri 6,468
38 Minnesota 6,474
39 Wisconsin 6,701
40 South Dakota 6,813
41 Idaho 6,883
42 Wyoming 7,174
43 North Dakota 7,185
44 Kentucky 7,232
45 Iowa 7,399
46 Montana 7,471
47 New Hampshire 8,147
48 West Virginia 8,479
49 Vermont 8,622
50 Maine 8,694

For more reading about America, check out:

About Chris Kolmar

Chris Kolmar has been in the real estate business for almost ten years now. He originally worked for Movoto Real Estate as the director of marketing before founding HomeSnacks.

He believes the key to finding the right place to live comes down to looking at the data, reading about things to do, and, most importantly, checking it out yourself before you move.

If you've been looking for a place to live in the past several years, you've probably stumbled upon his writing already.

You can find out more about him on LinkedIn or his website.