The 10 Most Diverse Cities In New Hampshire For 2021

We used data and science to determine the most diverse cities in New Hampshire.

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

Most Diverse Cities In New Hampshire

Article continues below.

Race relations in America seem to be hitting a tipping point.

While we still haven't dealt with racism as a society, the election of Donald Trump to the presidency has only flamed the tensions that have been mounting for years.

Part of the reason for that tension? The country as a whole continues to self segregate across race, income, and party lines. But it's not all bad on the race relations front.

There are parts of New Hampshire where there's a high level of diversity -- where people of all walks of life come together. We decided to shine a light on those places today.

Using a standard measure of diversity, we ranked all 13 cities in New Hampshire from most to least diverse.

Here are the 10 most diverse places in New Hampshire for 2021:

  1. Nashua
  2. Manchester
  3. Somersworth
  4. Lebanon
  5. Berlin
  6. Concord
  7. Portsmouth
  8. Dover
  9. Keene
  10. Rochester

So what city is the most diverse in New Hampshire? According to the most Census data, Nashua took the number one over all spot for diversity in New Hampshire.

Read on below to see how we crunched the numbers and how your town ranked. To see where New Hampshire ranked as a state, we have a ranking of the most diverse states in Ameria.

And if you already knew these places were diverse, check out:

The 10 Most Diverse Places In New Hampshire For 2021

Nashua, NH

Overall SnackAbility


Population: 88,815

HHI: 5,607
% White: 73.2%
% African American: 2.9%
% Asian: 8.4%
More on Nashua: PhotosData

Manchester, NH

Source: Public domain
Overall SnackAbility


Population: 112,109

HHI: 6,075
% White: 76.9%
% African American: 5.1%
% Asian: 5.1%
More on Manchester: PhotosData

Somersworth, NH

Source: Public domain
Overall SnackAbility


Population: 11,925

HHI: 6,959
% White: 83.0%
% African American: 3.2%
% Asian: 6.6%
More on Somersworth: PhotosData

Lebanon, NH

Overall SnackAbility


Population: 13,623

HHI: 7,310
% White: 85.1%
% African American: 2.0%
% Asian: 6.6%
More on Lebanon: PhotosData

Berlin, NH

Source: Public domain
Overall SnackAbility


Population: 10,221

HHI: 7,393
% White: 85.6%
% African American: 6.2%
% Asian: 0.5%
More on Berlin: PhotosData

Concord, NH

Overall SnackAbility


Population: 43,244

HHI: 7,457
% White: 86.1%
% African American: 3.4%
% Asian: 4.7%
More on Concord: PhotosData

Portsmouth, NH

Source: Public domain
Overall SnackAbility


Population: 21,775

HHI: 7,729
% White: 87.7%
% African American: 2.1%
% Asian: 4.8%
More on Portsmouth: PhotosData

Dover, NH

Overall SnackAbility


Population: 31,577

HHI: 7,795
% White: 88.1%
% African American: 1.1%
% Asian: 4.1%
More on Dover: PhotosData

Keene, NH

Overall SnackAbility


Population: 22,953

HHI: 8,310
% White: 91.0%
% African American: 1.2%
% Asian: 2.5%
More on Keene: PhotosData

Rochester, NH

Overall SnackAbility


Population: 30,955

HHI: 8,529
% White: 92.3%
% African American: 0.7%
% Asian: 1.8%
More on Rochester: PhotosData

How we determined the most diverse cities in New Hampshire for 2021

We still believe in the accuracy of data -- especially from the census. So that's where we went to get the breakdown of race across New Hampshire.

That lead us to the Census's 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 category names 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 limited our analysis to non-CDPs with a population greater than 8,000 people. That left us with 13 cities.

We then calculated the HHI for each city by finding the racial breakdown of a city in percent terms, squaring them, and then adding the squares together. This left us with scores ranging from 5,607 (Nashua) to 8,997 (Franklin).

Finally, we ranked each city based on the HHI with a lower score being more diverse than a high score. Nashua took the distinction of being the most diverse, while Franklin was the least diverse city. You can download the data here.

Read on for more information on how the cities in New Hampshire ranked for diversity or, for a more general take on diversity in america, head over to our ranking of the most diverse cities in America.

There You Have It - Diversity Across New Hampshire

If you're looking for a scientific breakdown of diversity across New Hampshire, this is an accurate list.

If you're curious enough, here are the least diverse places in New Hampshire:

  1. Franklin
  2. Claremont
  3. Laconia

For more New Hampshire reading, check out:

Detailed List Of The Most Diverse Cities In New Hampshire For 2021

Rank City Population HHI
1 Nashua, NH 88,815 5,607
2 Manchester, NH 112,109 6,075
3 Somersworth, NH 11,925 6,959
4 Lebanon, NH 13,623 7,310
5 Berlin, NH 10,221 7,393
6 Concord, NH 43,244 7,457
7 Portsmouth, NH 21,775 7,729
8 Dover, NH 31,577 7,795
9 Keene, NH 22,953 8,310
10 Rochester, NH 30,955 8,529
11 Laconia, NH 16,476 8,859
12 Claremont, NH 12,977 8,910
13 Franklin, NH 8,623 8,997

How Is The Area In ?

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.