Maine projected population growth from 2025 through 2035

Maine, the Pine Tree State, is known for its rugged coastline, picturesque lighthouses, and pristine wilderness. From the rocky shores of Acadia National Park to the charming streets of Portland and Bar Harbor, Maine offers a tranquil escape amidst nature's splendor. With a diverse economy supported by industries such as tourism, forestry, and fishing, Maine continues to attract individuals seeking a peaceful lifestyle and a strong connection to the outdoors.

Picture from a ciy in Maine U.S.

Maine forecasted population

Aterio data team has developed an AI enhanced model that helps organizations understand the forecasted growth of population in Maine for years 2025 through 2035.

Population Growth Rate (Year over Year)

1,360,0001,370,0001,380,0001,390,0001,400,0001,410,0001,420,0001,430,000-0.50%0.00%0.50%1.00%1.50%2020202120222023202420252026202720282029203020312032203320342035

2020

Population

1,363,196

Growth

0.00%

2021

Population

1,378,931

Growth

1.15%

2022

Population

1,390,922

Growth

0.87%

2023

Population

1,399,646

Growth

0.63%

2024

Population

1,405,012

Growth

0.38%

2025

Population

1,415,390

Growth

0.74%

2026

Population

1,416,693

Growth

0.09%

2027

Population

1,417,703

Growth

0.07%

2028

Population

1,418,864

Growth

0.08%

2029

Population

1,420,123

Growth

0.09%

2030

Population

1,421,489

Growth

0.10%

2031

Population

1,418,895

Growth

-0.18%

2032

Population

1,416,433

Growth

-0.17%

2033

Population

1,414,114

Growth

-0.16%

2034

Population

1,412,122

Growth

-0.14%

2035

Population

1,410,286

Growth

-0.13%

Last update at Tue Jun 30 2026

Zip code level csv report on population forecast and economic development in Maine

Our team has created a comprehensive report on population forecast and economic development by zip code using our proprietary AI models.

Top 10 most populated cities in Maine

Our model provides a detailed 2025 through 2035 forecasted population growth for every city and zip code in Maine.

City

2020 census

2025 population

2030 population

2035 population

Open
Portland68,40970,22072,11073,400View city insights, Portland
Lewiston37,12438,65938,39037,761View city insights, Lewiston
Bangor31,74032,57632,20131,320View city insights, Bangor
South Portland26,50027,02827,77328,256View city insights, South Portland
Auburn24,06725,40625,05024,504View city insights, Auburn
Biddeford22,54922,60022,93823,060View city insights, Biddeford
Sanford21,97622,87723,03123,075View city insights, Sanford
Westbrook20,40521,41821,92922,261View city insights, Westbrook
Saco20,37921,27421,56521,670View city insights, Saco
Augusta18,90719,09818,87118,448View city insights, Augusta

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