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About this map

The chance that two residents picked at random belong to different racial or ethnic groups. 0 means everyone is in the same group; 50+ is very mixed. The U.S. overall scores about 61.

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024).

U.S.
61.4
Maine
18.9
Rankings
Full list

Top and bottom zip codes in Maine

Zip codes with 1,000+ residents

Most diverse zip codes

See all
  1. 104667Perry62.3
  2. 204668Princeton53.8
  3. 304101Portland45.9
  4. 404240Lewiston38.2
  5. 504102Portland37.1
  6. 604106South Portland36.4
  7. 704469Orono35.9
  8. 804103Portland35.4
  9. 904092Westbrook34.2
  10. 1004020Cornish31.2

Least diverse zip codes

See all
  1. 104660Mount Desert0.2
  2. 204350Litchfield1.5
  3. 304410Bradford2.5
  4. 404347Hallowell2.5
  5. 504543Damariscotta2.7
  6. 604965Palmyra2.8
  7. 704927Clinton2.8
  8. 804435Exeter3.3
  9. 904758Mars Hill3.4
  10. 1004479Sangerville3.5

Diversity index by county in Maine

  1. 1Cumberland County26.2
  2. 2Androscoggin County23.5
  3. 3Washington County22.9
  4. 4York County18.5
  5. 5Penobscot County16.8
  6. 6Kennebec County15.5
  7. 7Sagadahoc County15.2
  8. 8Oxford County14.8
  9. 9Aroostook County14.2
  10. 10Hancock County14.1
  11. 11Piscataquis County13.8
  12. 12Waldo County13.6
  13. 13Franklin County13.2
  14. 14Lincoln County13.2
  15. 15Knox County12.9
  16. 16Somerset County11.8

Questions about this map

Which zip code has the highest diversity index in Maine?

Among zip codes with at least 1,000 residents, 04667 (Perry, ME) has the highest: 62.3.

Which zip code has the lowest diversity index in Maine?

04660 (Mount Desert, ME) has the lowest: 0.2.

What is the diversity index for the United States?

61.4; in Maine it is 18.9.

Where does this data come from?

U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024). The chance that two residents picked at random belong to different racial or ethnic groups. 0 means everyone is in the same group; 50+ is very mixed. The U.S. overall scores about 61.

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