Most Diverse Cities In Maine For 2020

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

Editor’s Note: We updated this article for 2020. This is our sixth time ranking the most diverse places in Maine.

Most Diverse Cities In Maine

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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 Maine 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 19 cities in Maine from most to least diverse.

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

Read on below to see how we crunched the numbers and how your town ranked. To see where Maine 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 Maine For 2020

Portland, ME

Overall SnackAbility


Population: 66,735

HHI: 6,815
% White: 82.0%
% African American: 8.3%
% Asian: 3.5%
More on Portland: PhotosData

Portland is the most populous city in the U.S. state of Maine, with a population of 66,937 as of 2016. This makes it the fourth least populous city in the U.S. to be the most populous in its state. The Greater Portland metropolitan area is home to over half a million people, more than one-third of Maine's total population. The Old Port district is frequented by tourists, while Portland Head Light is also a destination. The city seal depicts a phoenix rising from ashes, which is a reference to the recoveries from four devastating fires. Portland was named after the English Isle of Portland, and the city of Portland, Oregon, was in turn named after Portland, Maine.

Lewiston, ME

Source: Public domain
Overall SnackAbility


Population: 36,097

HHI: 7,467
% White: 86.1%
% African American: 4.6%
% Asian: 1.1%
More on Lewiston: PhotosData

Lewiston is the second largest city in Maine and the most central city in Androscoggin County. The city borders the coastal sideways of the Gulf of Maine and is south of Augusta, the state's capital and north of Portland, the cultural hub of Maine. It is one-half of the Lewiston-Auburn Metropolitan Statistical Area, commonly referred to as "L.A." or "L-A." Lewiston exerts a significant impact upon the diversity, religious variety, commerce, education, and economic power of Maine. It is known for a relatively low cost of living, substantial access to medical care, and an extremely low violent crime rate. While the dominant language spoken in the city is English, it is home to the largest French-speaking population in the United States while it is second to St. Martin Parish, Louisiana, in percentage of speakers.

Biddeford, ME

Overall SnackAbility


Population: 21,452

HHI: 7,821
% White: 88.2%
% African American: 2.6%
% Asian: 3.2%
More on Biddeford: PhotosData

Biddeford is a city in York County, Maine, United States. It is the principal commercial center of York County. The population was 21,277 at the 2010 census. Twin city of Saco, Biddeford includes the resort community of Biddeford Pool, Fortunes Rocks and Granite Point. The town is the site of the University of New England and the annual La Kermesse Franco-Americaine Festival. First visited by Europeans in 1616, it is the site of one of the earliest European settlements in the United States.

South Portland, ME

Overall SnackAbility


Population: 25,515

HHI: 7,939
% White: 88.9%
% African American: 3.8%
% Asian: 1.9%
More on South Portland: PhotosData

South Portland is a city in Cumberland County, Maine, United States, and is the fourth-largest city in the state, incorporated in 1898. As of the 2010 census, the city population was 25,002. Known for its working waterfront, South Portland is situated on Portland Harbor and overlooks the skyline of Portland and the islands of Casco Bay. Due to South Portland's close proximity to air, marine, rail, and highway transportation options, the city has become a center for retail and industry in the region.

Waterville, ME

Overall SnackAbility


Population: 16,515

HHI: 8,071
% White: 89.7%
% African American: 2.1%
% Asian: 2.9%
More on Waterville: PhotosData

Waterville is a city in Kennebec County of the U.S. state of Maine, United States, on the west bank of the Kennebec River. Home to Colby College and Thomas College, the population was 15,722 at the 2010 census. Waterville is also the latter of the cities which make up the Augusta-Waterville, ME Micropolitan Statistical Area.

Bangor, ME

Source: Public domain
Overall SnackAbility


Population: 32,098

HHI: 8,092
% White: 89.8%
% African American: 1.9%
% Asian: 2.5%
More on Bangor: PhotosData

Bangor is a city along the Penobscot River in the U.S. state of Maine. The city proper has a population of 33,039, while the Bangor metropolitan area has a population of 153,746. Bangor is known as the "Queen City" of Maine.

Auburn, ME

Overall SnackAbility


Population: 23,064

HHI: 8,108
% White: 89.8%
% African American: 1.2%
% Asian: 1.3%
More on Auburn: PhotosData

Auburn is a city in and the county seat of Androscoggin County, Maine, United States. The population was 23,055 at the 2010 census. Auburn and Lewiston are known locally as the Twin Cities or Lewiston-Auburn.

Caribou, ME

Source: Public domain
Overall SnackAbility


Population: 7,749

HHI: 8,284
% White: 90.9%
% African American: 3.0%
% Asian: 0.0%
More on Caribou: PhotosData

Caribou is the second largest city in Aroostook County, Maine, United States. Its population was 8,189 at the 2010 census.

Westbrook, ME

Overall SnackAbility


Population: 18,417

HHI: 8,286
% White: 90.9%
% African American: 2.1%
% Asian: 1.1%
More on Westbrook: PhotosData

Westbrook is a city in Cumberland County, Maine, United States and a suburb of Portland. The population was 17,494 at the 2010 census. It is part of the Portland-South Portland-Biddeford, Maine metropolitan statistical area.

Old Town, ME

Source: Public domain
Overall SnackAbility


Population: 7,549

HHI: 8,465
% White: 91.9%
% African American: 0.8%
% Asian: 1.2%
More on Old Town: PhotosData

Old Town is a city in Penobscot County, Maine, United States. The population was 7,840 at the 2010 census. The city's developed area is chiefly located on relatively large Marsh Island, though its boundaries extend beyond that. The island is surrounded and defined by the Penobscot River to the east, and the Stillwater River to the west.

How we determined the most diverse cities in Maine for 2020

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 Maine.

That lead us to the Census's most recently available data, the 2014-2018 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 5,000 people. That left us with 19 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 6,815 (Portland) to 9,444 (Brewer).

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

Read on for more information on how the cities in Maine 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 Maine

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

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

  1. Brewer
  2. Belfast
  3. Gardiner

For more Maine reading, check out:

Detailed List Of The Most Diverse Cities In Maine For 2020

Rank City Population HHI
1 Portland, ME 66,735 6,815
2 Lewiston, ME 36,097 7,467
3 Biddeford, ME 21,452 7,821
4 South Portland, ME 25,515 7,939
5 Waterville, ME 16,515 8,071
6 Bangor, ME 32,098 8,092
7 Auburn, ME 23,064 8,108
8 Caribou, ME 7,749 8,284
9 Westbrook, ME 18,417 8,286
10 Old Town, ME 7,549 8,465
11 Presque Isle, ME 9,162 8,657
12 Augusta, ME 18,635 8,762
13 Bath, ME 8,320 8,901
14 Saco, ME 19,342 8,916
15 Ellsworth, ME 7,960 8,930
16 Rockland, ME 7,190 8,964
17 Gardiner, ME 5,667 9,028
18 Belfast, ME 6,696 9,060
19 Brewer, ME 9,123 9,444

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.